CN103266183A - Cane juice transit container and method - Google Patents
Cane juice transit container and method Download PDFInfo
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- CN103266183A CN103266183A CN2013102453694A CN201310245369A CN103266183A CN 103266183 A CN103266183 A CN 103266183A CN 2013102453694 A CN2013102453694 A CN 2013102453694A CN 201310245369 A CN201310245369 A CN 201310245369A CN 103266183 A CN103266183 A CN 103266183A
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Abstract
The invention provides a cane juice transit container comprising a cylinder body, a juice inlet, a juice outlet, a liquid level control device, a frequency conversion juice outlet pump and a stirring device. The invention also provides a cane juice transit method. By utilizing the cane juice transit method, the juice outlet speed is controlled by detection of liquid level in the container to maintain the liquid level in the container to be in a setting scope. According to the cane juice transit container, the stirring device is added in a transit storage container of cane juice of a sulphurous acid method sugar process, the cane juice is cycled by virtue of stirring, and bacteria on the tank wall can not be accumulated by virtue of the friction action on the wall surface of the container by virtue of sugarcane impurities in the cane juice. The liquid level control can be also configured, and liquid in the container can be adjusted to have an appropriate liquid level by the liquid level control module to be conductive to thorough cleaning when the stirring device is started for cleaning. By utilizing the cane juice transit container, the function of an on-line self-cleaning container can be realized, shutdown and organization of manpower for cleaning are not needed, the utilization of equipment is greatly improved, and loss caused by shutdown is reduced.
Description
Technical field
The present invention relates to the sugar-refining industry container, be specifically related to a kind of sugarcane juice transfer container and method.
Background technology
At present sulfitation sugar mill milling shop, clarification plant are used for the container various forms of splendid attire sugarcane juice has, and does not have unified specification, wherein with cube shaped and round shape is the most common, does not have the tank skin washing unit.
In the sulfurous method sugar refining technology, in the milling shop, the sugarcane juice that several crushers of sugarcane process are squeezed out is before entering into pre-grey treatment process, the process that a transfer storage is arranged, the storing device that this process is used is the transfer storage receptacle, conventional transfer storage receptacle is cube shaped and round shape, the bottom surface is the plane, there is not whipping appts, because the temperature temperature of sugarcane juice in this transfer storage receptacle has only about 40 ℃, be fit to very much bacterial reproduction under the environment of such temperature and the high sugar of sugarcane juice, easy breed bacteria forms mycoderm on the tank skin, cause the sucrose degraded, sugarcane juice falls 0.5AP from milling shop at least to sugarcane juice case sugarcane juice purity, and serious have a 2AP, causes serious sugar loss;
Same, in the cane juice clarification workshop, also be provided with the transfer storage process between heating process and the stove drying neutralizing treatment operation, the same equipment of use and milling shop transfer storage receptacle carries out the transfer storage, the temperature of sugarcane juice in the transfer storage receptacle of this process also only reaches 55-60 ℃, if use above-mentioned conventional containers to have tank skin and dead angle breed bacteria equally, form the problem of mycoderm; The monose that forms of sucrose degraded back is a kind of reducing substances in addition, in Closed Circulation in Sugar Production, can with sugarcane juice in other impurity complicated Maillard reaction takes place, cause the white sugar colour to increase.Thereby it is very important growing at the transfer storage process of Closed Circulation in Sugar Production prevention mushroom.
In the prior art; because the reproduction speed of bacterium is very fast; common each class organizes manpower to clean the sugarcane juice cell body at milling shop; and the sugarcane juice case is owing to can not shut down in the production process; just manually clean in the time of can only shutting down in little phase, Clean after every be about 20-40 days once, some sugar refinery is not carried out the little phase and is shut down; even a press for extracting juice Ji Caixi once, can't in time remove the influence that bacterial reproduction causes production.
Summary of the invention
The object of the invention is to provide a kind of sugarcane juice transfer container, be applied in the sulfurous method sugar sugaring process, when temperature is low, as 40～60 ℃ of scopes, the transfer storage of sugarcane juice, this sugarcane juice container have solved the difficult cleaning of common sugarcane juice container, the problem that incrustation is many, can prevent effectively that incrustation from producing, keeping sugarcane juice purity, saves the flow process of artificial cleaning.
A kind of sugarcane juice transfer container provided by the invention comprises cylinder, advances the juice mouth, juice opening, fluid level control device, frequency conversion go out juice pump and whipping appts;
Described frequency conversion goes out the juice pump and is communicated with cylinder by juice yield tube;
Described fluid level control device is for detection of the liquid level information in the cylinder, and frequency conversion goes out the running speed of juice pump according to the liquid level information Control, thus the liquid level in the control cylinder.
Described whipping appts comprises the stirring control module, stirs frequency transformer, variable-frequency motor, agitator;
Described stirring control module is used for sending steering order to stirring frequency transformer, and the output frequency of frequency transformer is stirred in control;
Described stirring frequency transformer sends control signal according to the steering order that stirs control module to variable-frequency motor, the running speed of control variable-frequency motor;
Described variable-frequency motor is connected with agitator, the velocity of rotation of control agitator.
Preferably, described stirring control module comprises regularly submodule and stirring velocity control submodule;
Described timing submodule is used for setting scavenging period, when the scavenging period that arrives setting or scavenging period end, sends steering order to stirring velocity and controls submodule;
Stirring velocity control submodule is according to steering order, and the operating frequency of frequency transformer is stirred in control, thereby the control variable-frequency motor drives the velocity of rotation of agitator.
Described fluid level control device comprises liquid level detector, liquid level control module, goes out the juice frequency transformer;
Described liquid level detector is connected with cylinder, is used for detecting the liquid level in the cylinder, and liquid level information is passed to the liquid level control module;
Described liquid level control module is according to the liquid level information that receives, and output controls signal to out the juice frequency transformer accordingly;
Describedly go out the juice frequency transformer according to the control signal of liquid level control module, the control frequency conversion goes out the rotating speed of juice pump.
Described liquid level detector can be a kind of in differential pressure transmitter, magnetic turnover panel liquidometer, glass tubular type liquidometer, glass plate type liquidometer, electronic floating ball lever meter, electronic float level meter, magnetostriction liquidometer, ultrasonic level gage, the throw-in type fluid level transmitter.Their principle of work are different and different characteristics are arranged, can determine its installation site and use-pattern according to its characteristic in actual the use, according to the characteristic of sugar refinery sugarcane defeco-sulfitated juice, but select for use can be high temperature resistant, erosion resistance measuring tape particle-liquid, serve as that to detect the intelligent flange fluid level transmitter at position be the optimal liquid level detector with the diaphragm contact.
Preferably, described liquid level detector is fluid level transmitter; Described liquid level control module comprises the PID setter;
Described fluid level transmitter detects the liquid level information in the cylinder, and is that analog current signal is passed to the PID setter with the liquid level information translation;
Described PID setter carries out A/D with the analog current signal that receives and is converted into the liquid level numerical signal, calculates, and through D/A calculation result is converted into current signal again and transfers to out the juice frequency transformer;
Describedly go out the juice frequency transformer according to the current signal regulating frequency output of PID setter output, the control frequency conversion goes out the rotating speed of juice pump.
Described liquid level control module also comprises the variable frequency pump pilot circuit;
Described PID setter is electrically connected with the variable frequency pump pilot circuit, sends steering order to the variable frequency pump pilot circuit according to liquid level information;
The variable frequency pump pilot circuit is according to steering order, and the control frequency conversion goes out the unlatching of juice pump or closes.
The present invention also provides a kind of sugarcane juice method for transfer, and employed sugarcane juice transfer container comprises cylinder, advances the juice mouth, juice opening, fluid level control device, frequency conversion go out juice pump and whipping appts;
This method may further comprise the steps:
A, sugarcane juice enter in the cylinder by advancing the juice mouth, liquid level is along with the inflow of sugarcane juice is constantly risen, fluid level control device detects the liquid level information in the cylinder, control the running speed that frequency conversion goes out the juice pump according to liquid level information and the difference of setting liquid level, thereby the liquid level in the control cylinder, the stable transfer output that keeps sugarcane juice;
B, when the needs clean container, start whipping appts, the rotation by whipping appts drives the liquid in rotation in the cylinder, thereby realizes that container cleans.
The preferred method that carries out the sugarcane juice transfer of the present invention, on the basis of the sugarcane juice transfer container that above-mentioned sugarcane juice transfer preferred method is used, whipping appts has been carried out preferably, and described whipping appts comprises the stirring control module, stirs frequency transformer, variable-frequency motor, agitator;
This method may further comprise the steps:
A, sugarcane juice enter in the cylinder by advancing the juice mouth, liquid level is along with the inflow of sugarcane juice is constantly risen, fluid level control device detects the liquid level information in the cylinder, control the running speed that frequency conversion goes out the juice pump according to liquid level information and the difference of setting liquid level, thereby the liquid level in the control cylinder, the stable transfer output that keeps sugarcane juice;
B, the default scavenging period of described stirring control module and cleaning countdown length;
C, before scavenging period, stir control module and drive the agitator low-speed running by stirring the Frequency Converter Control variable-frequency motor;
D, when arriving default scavenging period, stir control module and start and clean countdown, send the cleaning initiating signal to stirring frequency transformer, stir frequency transformer output maximum frequency, run up thereby the control variable-frequency motor drives agitator;
E, when cleaning countdown when finishing, stir control module and send the cleaning end signal to stirring frequency transformer, stir the reduction output frequency of frequency transformer, the control variable-frequency motor drives agitator and recovers low-speed running.
The further preferred method that carries out the sugarcane juice transfer of the present invention may further comprise the steps:
A, sugarcane juice enter in the cylinder by advancing the juice mouth, and liquid level is along with the inflow of sugarcane juice is constantly risen, and fluid level control device detects the liquid level information in the cylinder, and default two of fluid level control device is set liquid level, are respectively normal operation liquid level and clean liquid level;
B, the default scavenging period of described stirring control module and cleaning countdown length;
C, before scavenging period, level stability keeps the stable transfer output of sugarcane juice in normal operation liquid level in the fluid level control device control cylinder, stirs control module and drives the agitator low-speed running by stirring the Frequency Converter Control variable-frequency motor;
D, when arriving default scavenging period, stir control module and send the wash procedure pre-actuation signal to fluid level control device, liquid level in the fluid level control device control cylinder arrives cleans liquid level, fluid level control device returns the liquid level ready signal to stirring control module, stir control module and start the cleaning countdown, send the cleaning initiating signal to stirring frequency transformer, stir frequency transformer output maximum frequency, run up thereby the control variable-frequency motor drives agitator;
E, when cleaning countdown when finishing, stir control module and send the cleaning end signal to fluid level control device and stirring frequency transformer, liquid level in the fluid level control device control cylinder is recovered normal operation liquid level, recover the stable output of sugarcane juice, stir the reduction output frequency of frequency transformer, the control variable-frequency motor drives agitator and recovers low-speed running.
The further preferred method that carries out the sugarcane juice transfer of the present invention, on the basis of the sugarcane juice transfer container that above-mentioned sugarcane juice transfer preferred method is used, whipping appts has been carried out further preferably, and described stirring control module comprises regularly submodule and stirring velocity control submodule; This method may further comprise the steps:
A, sugarcane juice enter in the cylinder by advancing the juice mouth, and liquid level is along with the inflow of sugarcane juice is constantly risen, and fluid level control device detects the liquid level information in the cylinder, and default two of fluid level control device is set liquid level, are respectively normal operation liquid level and clean liquid level;
B, described timing submodule are preset
Scavenging period and cleaning countdown length;
C, before scavenging period, level stability is in normal operation liquid level in the described fluid level control device control cylinder, the stable transfer output that keeps sugarcane juice, described stirring velocity control submodule drives the agitator low-speed running by stirring the Frequency Converter Control variable-frequency motor;
D, when arriving default scavenging period, described timing submodule sends the wash procedure pre-actuation signal to fluid level control device, liquid level in the fluid level control device control cylinder arrives cleans liquid level, fluid level control device returns the liquid level ready signal to timing submodule and stirring velocity control submodule, regularly submodule starts the cleaning countdown, stirring velocity control submodule sends the cleaning initiating signal to stirring frequency transformer, stir frequency transformer output maximum frequency, run up thereby the control variable-frequency motor drives agitator;
E, when cleaning countdown when finishing, regularly submodule sends the cleaning end signal to fluid level control device and stirring velocity control submodule, liquid level in the fluid level control device control cylinder is recovered normal operation liquid level, stirring velocity control submodule sends to clean to the stirring frequency transformer finishes signal, stir frequency transformer and reduce output frequency, the control variable-frequency motor drives agitator and recovers low-speed running.
The fluid level control device that in above-mentioned each sugarcane juice, uses in the shifting method, its preferred construction and being applied as: comprise liquid level detector, liquid level control module, go out the juice frequency transformer; Described liquid level detector is fluid level transmitter; Described liquid level control module comprises the PID setter;
Described fluid level transmitter detects the liquid level information in the cylinder, and is that analog current signal is passed to the PID setter with the liquid level information translation;
Described PID setter is preset limit value, the analog current signal that receives is carried out A/D be converted into the liquid level numerical signal, carries out the difference computing with limit value, is converted into current signal through D/A again and transfers to out the juice frequency transformer;
Describedly go out the juice frequency transformer according to the current signal regulating frequency output of PID setter output, the control frequency conversion goes out the rotating speed of juice pump.
Its further preferred construction of described fluid level control device and being applied as:
Described liquid level control module also comprises the variable frequency pump pilot circuit, is used for the control frequency conversion and goes out the unlatching of juice pump or close;
Described PID setter also is preset with higher limit and lower value;
When the liquid level numerical signal is higher than higher limit, the PID setter sends instruction and uses the frequency conversion of juice Frequency Converter Control and go out the full speed running of juice pump, when the liquid level numerical signal is lower than higher limit, whole liquid level control module is recovered original control method, and namely the difference conversion result according to liquid level numerical signal and limit value controls the running that frequency conversion goes out the juice pump;
When the liquid level numerical signal was lower than lower value, the PID setter sent liquid level and crosses low signal to the variable frequency pump pilot circuit, closed frequency conversion by the variable frequency pump pilot circuit and went out the juice pump; When the liquid level numerical signal was higher than lower value, the variable frequency pump pilot circuit was opened frequency conversion and is gone out the juice pump, and whole liquid level control module is recovered original control method, and namely the difference conversion result according to liquid level numerical signal and limit value controls the running that frequency conversion goes out the juice pump.
The present invention is among the transfer storage receptacle of the sugarcane juice of sulfurous method sugaring, increased whipping appts, utilize this structure just to can be good at solving when the sugarcane juice transfer is stored in the prior art, bacterium grows at tube wall easily, accumulation consequently forms the problem of mycoderm, its principle is to utilize to stir to make the interior sugarcane juice of container be in the cyclotron motion state, and syrup is in continuous kinestate, has significantly reduced the speed of growing of bacterium; And owing to contain impurity such as a certain amount of sugarcane chaff in the sugarcane juice in the sulfurous method sugar refining technology, along with the internal tank surface is washed away in the cyclotron motion of sugarcane juice, the tank skin that always rubbing makes the bacterium of tank skin to accumulate.Therefore, the present invention increases a whipping appts, just can solve this hard nut to crack in the prior art, make effective bacteria growing inhibiting of sugarcane juice transfer when storage, prevent the incrustation deposition, keep sugarcane juice purity, also saved the manpower and materials of artificial clean container simultaneously, guaranteed the high-level efficiency of container.
The liquid level control module that the present invention uses is controlled the output frequency of frequency transformer according to the difference of liquid level information and limit value, liquid level is than high more many of limit value, control frequency transformer frequency of delivery is more big, and it is just more fast that frequency conversion goes out the running speed of juice pump, makes liquid level slowly descend; And when liquid level was lower than limit value, control frequency transformer frequency of delivery was more little, and it is just more slow that frequency conversion goes out the running speed of juice pump, makes liquid level slowly rise.The liquid level control module makes the flow rate of juice yield tube and the flow rate of juice-feeding tube be complementary, and makes that the liquid level in the transfer container keeps stable.When cleaning by the startup whipping appts, can the liquid level control module liquid in the container be adjusted to suitable liquid level, be conducive to make that cleaning is more thorough.
The principle of PID setter difference of the present invention computing is, carry out the difference computing according to INTELLIGENT PID REGULATOR liquid level set(ting)value and fluid level transmitter actual measured value in control process, make a strategic decision according to liquid level deviation E and deviation variation rate EC, the PID setter is by the P(ratio), the I(integration), the D(differential) three control parameters sampling periods of output.The error E that sampling is obtained and error rate EC draw adjustment amount and go to control controlled plant after Fuzzy Processing.In the sampling period, PID setter computing module is sampled to liquid level, and actual liquid level value Y compared with set-point S, obtain the deviation E=Y-S of liquid level, handle through PID setter computing module and can obtain digital quantity EC=E (k)-E (k-1) that deviation changes.E and EC multiply by quantizing factor again and obtain the working control amount through quantizing the conversion Calculation manipulated variable, are used for controlling the time of setting up a call of PID setter internal solid rly., thereby the frequency of regulating frequency transformer reaches the control purpose.Simultaneously, consider interference free performance, preferably the input and output type with the PID setter all is set at 4 ~ 20mA current type, and when the liquid level numerical signal was lower than higher limit, its outward current was made as the current type of 4 ~ 12mA; When the liquid level numerical signal was higher than higher limit, the PID current regulator was made as the current type of 12 ~ 20mA.
Preferred version of the present invention is provided with the stirring control module, and the fluid,matching level control device can be realized automatic cleaning function more easily.Preferred version of the present invention only needs that the fixed cycle is carried out wash procedure in process of production; can make whole sugarcane juice transfer process continue to carry out; do not clean arrangement and do not need to shut down, improve usage ratio of equipment greatly, reduced waste of manpower resource.
The variable frequency pump pilot circuit that adds in the preferred version of the present invention is used for the control frequency conversion and goes out the unlatching of juice pump or cut out; When the liquid level numerical signal is higher than higher limit, the liquid level control module goes out the juice frequency transformer by signal control to make frequency conversion go out the juice pump to run up, reduce the liquid level in the transfer container, when the liquid level numerical signal was lower than higher limit, whole liquid level control module was recovered original control method; When the liquid level numerical signal is lower than lower value, the liquid level control module is closed frequency conversion by signal control variable frequency pump pilot circuit and is gone out the juice pump with the liquid level in the rising transfer container, when the liquid level numerical signal is higher than lower value, the variable frequency pump pilot circuit is opened frequency conversion and is gone out the juice pump, and whole liquid level control module is recovered original control method.Above control method can successfully manage the excessive or too small emergency case of juice-feeding tube flow, prevents that liquid level is too high or too low in the transfer container, further promotes the operation stability of integral device.
In sum, the present invention has following advantage:
1, in the transfer storage receptacle, increases whipping appts, prevented that effectively bacterium from growing at container inner wall easily, stopped the formation of mycoderm;
2, have automatic cleaning function, can reduce microorganism and dirt to the influence of syrup quality at production period without the downtime casing;
3, liquid level in the container is monitored, made the interior liquid level of container remain on a stable scope, prevent that too high or too low situation from appearring in liquid level;
4, got final product by former storage juice container repacking, need not to increase other too many equipment, cost is low, and it is convenient to use.
Description of drawings
The structural representation of the sugarcane juice transfer container that Fig. 1 provides for the embodiment of the invention
The structural representation of the sugarcane juice transfer container that Fig. 2 provides for the embodiment of the invention
The structured flowchart of the control device of the sugarcane juice transfer container that Fig. 3 provides for the embodiment of the invention
The structured flowchart of the control device of the sugarcane juice transfer container that Fig. 4 provides for the embodiment of the invention
The structured flowchart of the control device of the sugarcane juice transfer container that Fig. 5 provides for the embodiment of the invention
The structured flowchart of the control device of the sugarcane juice transfer container that Fig. 6 provides for the embodiment of the invention
The structured flowchart of the control device of the sugarcane juice transfer container that Fig. 7 provides for the embodiment of the invention
Sequence number and each several part structure and title are as follows among the figure:
1 is cylinder, and 2 for advancing the juice mouth, and 3 is juice opening, and 4 for frequency conversion goes out the juice pump, and 5 is whipping appts, and 6 is juice yield tube, and 7 is liquid level detector, and 8 is variable-frequency motor, and 9 is agitator.
Embodiment
Specify the present invention below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1
Sugarcane juice transfer container comprises cylinder 1, advances juice mouth 2, juice opening 3, fluid level control device, frequency conversion go out juice pump 4 and whipping appts 5;
Described frequency conversion goes out juice pump 4 and is communicated with cylinder 1 by juice yield tube 6;
Described fluid level control device is for detection of the liquid level information in the cylinder 1, and frequency conversion goes out the running speed of juice pump 4 according to the liquid level information Control, thus the liquid level in the control cylinder 1.
As shown in Figure 2, sugarcane juice transfer container comprises cylinder 1, advances juice mouth 2, juice opening 3, fluid level control device, frequency conversion go out juice pump 4 and whipping appts 5;
Described frequency conversion goes out juice pump 4 and is communicated with cylinder 1 by juice yield tube 6;
Described fluid level control device is for detection of the liquid level information in the cylinder 1, and frequency conversion goes out the running speed of juice pump 4 according to the liquid level information Control, thus the liquid level in the control cylinder 1;
Described whipping appts is electrically connected with fluid level control device, and according to the Signal Regulation stirring velocity of fluid level control device, and the fluid,matching level control device is finished the container cleaning.
Embodiment 1
Sugarcane juice transfer container comprises cylinder 1, advances juice mouth 2, juice opening 3, fluid level control device, frequency conversion go out juice pump 4 and whipping appts 5;
Described frequency conversion goes out juice pump 4 and is communicated with cylinder 1 by juice yield tube 6;
Described fluid level control device is for detection of the liquid level information in the cylinder 1, and frequency conversion goes out the running speed of juice pump 4 according to the liquid level information Control, thus the liquid level in the control cylinder 1;
Utilizing the sugarcane juice transfer container of present embodiment to carry out the sugarcane juice method for transfer may further comprise the steps:
A, sugarcane juice enter in the cylinder 1 by advancing juice mouth 2, liquid level is along with the inflow of sugarcane juice is constantly risen, fluid level control device detects the liquid level information in the cylinder 1, control the running speed that frequency conversion goes out juice pump 4 according to liquid level information and the difference of setting liquid level, thereby the liquid level in the control cylinder 1, the stable transfer output that keeps sugarcane juice;
B, when the needs clean container, start whipping appts, the rotation by whipping appts drives the liquid in rotation in the cylinder 1, thereby realizes that container cleans.
Sugarcane juice transfer container comprises cylinder 1, advances juice mouth 2, juice opening 3, fluid level control device, frequency conversion go out juice pump 4 and whipping appts 5;
As shown in Figure 3, described whipping appts 5 comprises the stirring control module, stirs frequency transformer, variable-frequency motor 8, agitator 9;
Described stirring control module is used for sending steering order to stirring frequency transformer, and the output frequency of frequency transformer is stirred in control;
Described stirring frequency transformer sends control signal according to the steering order that stirs control module to variable-frequency motor 8, the running speed of control variable-frequency motor 8;
Described variable-frequency motor 8 is connected with agitator 9, the velocity of rotation of control agitator 9;
Utilizing the sugarcane juice transfer container of present embodiment to carry out the sugarcane juice method for transfer may further comprise the steps:
A, sugarcane juice enter in the cylinder 1 by advancing juice mouth 2, and liquid level is along with the inflow of sugarcane juice is constantly risen, and fluid level control device detects the liquid level information in the cylinder 1, and fluid level control device is default normally to be moved liquid level and clean liquid level;
B, the default scavenging period of described stirring control module and cleaning countdown length;
C, before scavenging period, level stability keeps the stable transfer output of sugarcane juice in normal operation liquid level in the fluid level control device control cylinder 1, stirs control module and drives agitators 9 low-speed runnings by stirring Frequency Converter Control variable-frequency motor 8;
D, when arriving default scavenging period, stir control module and send the wash procedure pre-actuation signal to fluid level control device, liquid level in the fluid level control device control cylinder 1 arrives cleans liquid level, fluid level control device returns the liquid level ready signal to stirring control module, stir control module and start the cleaning countdown, send the cleaning initiating signal to stirring frequency transformer, stir frequency transformer output setpoint frequency, run up thereby control variable-frequency motor 8 drives agitator 9;
E, when cleaning countdown when finishing, stir control module and send the cleaning end signal to fluid level control device and stirring frequency transformer, liquid level in the fluid level control device control cylinder 1 is recovered normal operation liquid level, recover the stable output of sugarcane juice, stir the reduction output frequency of frequency transformer, control variable-frequency motor 8 drives agitator 9 and recovers low-speed running.
Embodiment 3
Sugarcane juice transfer container comprises cylinder 1, advances juice mouth 2, juice opening 3, fluid level control device, frequency conversion go out juice pump 4 and whipping appts 5;
As shown in Figure 4, described whipping appts 5 comprises the stirring control module, stirs frequency transformer, variable-frequency motor 8, agitator 9;
Described stirring control module comprises regularly submodule and stirring velocity control submodule;
Utilizing the sugarcane juice transfer container of present embodiment to carry out the sugarcane juice method for transfer may further comprise the steps:
A, sugarcane juice enter in the cylinder 1 by advancing juice mouth 2, and liquid level is along with the inflow of sugarcane juice is constantly risen, and fluid level control device detects the liquid level information in the cylinder 1, and fluid level control device is default normally to be moved liquid level and clean liquid level;
B, the default scavenging period of described timing submodule and cleaning countdown length;
C, before scavenging period, level stability is in normal operation liquid level in the described fluid level control device control cylinder 1, the stable transfer output that keeps sugarcane juice, described stirring velocity control submodule drives agitator 9 low-speed runnings by stirring Frequency Converter Control variable-frequency motor 8;
D, when arriving default scavenging period, described timing submodule sends the wash procedure pre-actuation signal to fluid level control device, liquid level in the fluid level control device control cylinder 1 arrives cleans liquid level, fluid level control device returns the liquid level ready signal to timing submodule and stirring velocity control submodule, regularly submodule starts the cleaning countdown, stirring velocity control submodule sends the cleaning initiating signal to stirring frequency transformer, stir frequency transformer output setpoint frequency, run up thereby control variable-frequency motor 8 drives agitator 9;
E, when cleaning countdown when finishing, regularly submodule sends the cleaning end signal to fluid level control device and stirring velocity control submodule, liquid level in the fluid level control device control cylinder 1 is recovered normal operation liquid level, stirring velocity control submodule sends to clean to the stirring frequency transformer finishes signal, stir frequency transformer and reduce output frequency, control variable-frequency motor 8 drives agitator 9 and recovers low-speed running.
Embodiment 4
Fluid level control device in above-mentioned each sugarcane juice transfer container all can adopt structure as shown in Figure 5, and described fluid level control device comprises liquid level detector 7, liquid level control module, goes out the juice frequency transformer;
Described liquid level detector 7 is connected with cylinder 1, is used for detecting the liquid level in the cylinder 1, and liquid level information is passed to the liquid level control module;
Described liquid level control module is preset limit value, and according to the liquid level information that receives and the difference of limit value, output controls signal to out the juice frequency transformer accordingly;
Describedly go out the juice frequency transformer according to the control signal of liquid level control module, the control frequency conversion goes out the rotating speed of juice pump 4;
The method of utilizing the sugarcane juice transfer container of present embodiment to carry out liquid level control may further comprise the steps:
A, sugarcane juice enter in the cylinder 1 by advancing juice mouth 2, and liquid level is along with the inflow of sugarcane juice is constantly risen, and liquid level detector 7 begins to detect the liquid level in the cylinder 1, and transmission liquid level information is to the liquid level control module;
After b, liquid level control module receive liquid level information, compare calculating with the limit value of presetting, according to the difference of liquid level information and limit value, output controls signal to out the juice frequency transformer accordingly;
C, go out the juice frequency transformer and export corresponding variable frequency pump running frequency according to the control signal of liquid level control module, the control frequency conversion goes out the travelling speed of juice pump 4, thereby the control sugarcane juice is from the flow size of juice yield tube 6 outputs.
Embodiment 5
Fluid level control device in embodiment 4 can adopt preferred structure as shown in Figure 6, and described liquid level detector 7 is fluid level transmitter; Described liquid level control module comprises the PID setter; Described fluid level transmitter detects the liquid level information in the cylinder 1, and is that analog current signal is passed to the PID setter with the liquid level information translation; Described PID setter is preset limit value, the analog current signal that receives is carried out A/D be converted into the liquid level numerical signal, carries out the difference computing with limit value, is converted into current signal through D/A again and transfers to out the juice frequency transformer; Describedly go out the juice frequency transformer according to the current signal regulating frequency output of PID setter output, the control frequency conversion goes out the rotating speed of juice pump 4;
The method of utilizing the sugarcane juice transfer container of present embodiment to carry out liquid level control may further comprise the steps:
A, sugarcane juice enter in the cylinder 1 by advancing juice mouth 2, and liquid level is along with the inflow of sugarcane juice is constantly risen, and fluid level transmitter detects the liquid level information in the cylinder 1, and the liquid level numerical information is transformed to analog current signal is passed to the PID setter;
After b, described PID setter receive liquid level information, the analog current signal that receives is carried out A/D be converted into the liquid level numerical signal, carry out the difference computing with limit value, be converted into current signal through D/A again and transfer to out the juice frequency transformer;
C, go out the juice frequency transformer according to the current signal of PID setter output, the operation that the control frequency conversion goes out juice pump 4, thus the control sugarcane juice is from the speed of juice yield tube 6 outputs.
Can adopt as shown in Figure 7 further preferred structure as embodiment 5 described fluid level control devices, described liquid level control module also comprises the variable frequency pump pilot circuit, is used for the control frequency conversion and goes out the unlatching of juice pump or close; Described PID setter also is preset with higher limit and lower value;
When the liquid level numerical signal is higher than higher limit, the PID setter sends instruction and uses the frequency conversion of juice Frequency Converter Control and go out 4 full speed runnings of juice pump, when the liquid level numerical signal is lower than higher limit, whole liquid level control module is recovered original control method, and namely the difference conversion result according to liquid level numerical signal and limit value controls the running that frequency conversion goes out juice pump 4;
When the liquid level numerical signal was lower than lower value, the PID setter sent liquid level and crosses low signal to the variable frequency pump pilot circuit, closed frequency conversion by the variable frequency pump pilot circuit and went out juice pump 4; When the liquid level numerical signal was higher than lower value, the variable frequency pump pilot circuit was opened frequency conversion and is gone out juice pump 4, and whole liquid level control module is recovered original control method, and namely the difference conversion result according to liquid level numerical signal and limit value controls the running that frequency conversion goes out juice pump 4;
The method of utilizing the sugarcane juice transfer container of present embodiment to carry out liquid level control may further comprise the steps:
A, sugarcane juice enter in the cylinder 1 by advancing juice mouth 2, and liquid level is along with the inflow of sugarcane juice is constantly risen, and fluid level transmitter detects the liquid level information in the cylinder 1, and are that analog current signal is passed to the PID setter with the liquid level information conversion;
After b, described PID setter receive liquid level information, the analog current signal that receives is carried out A/D be converted into the liquid level numerical signal, carry out the difference computing with limit value, be converted into current signal through D/A again and transfer to out the juice frequency transformer;
C, go out the juice frequency transformer according to the current signal of PID setter output, the operation that the control frequency conversion goes out juice pump 4, thereby the speed that the control sugarcane juice flows out from juice yield tube 6;
D, when the liquid level numerical signal is higher than higher limit, the PID setter sends instruction and uses the frequency conversion of juice Frequency Converter Control and go out 4 full speed runnings of juice pump, when the liquid level numerical signal is lower than higher limit, the process of repeating step b and c;
E, when the liquid level numerical signal is lower than lower value, the PID setter sends liquid level and crosses low signal to the variable frequency pump pilot circuit, closes frequency conversion by the variable frequency pump pilot circuit and goes out juice pump 4; When the liquid level numerical signal is higher than lower value, opens frequency conversion by the variable frequency pump pilot circuit and go out juice pump 4, the process of repeating step b and c.
Claims (13)
1. sugarcane juice transfer container comprises cylinder (1), advances juice mouth (2), juice opening (3), fluid level control device, frequency conversion go out juice pump (4) and whipping appts (5);
Described frequency conversion goes out juice pump (4) and is communicated with cylinder (1) by juice yield tube (6);
Described fluid level control device is for detection of the liquid level information in the cylinder (1), and frequency conversion goes out the running speed of juice pump (4) according to the liquid level information Control, thus the liquid level in the control cylinder (1).
2. sugarcane juice transfer container as claimed in claim 1 is characterized in that:
Described whipping appts (5) comprises the stirring control module, stirs frequency transformer, variable-frequency motor (8), agitator (9);
Described stirring control module is used for sending steering order to stirring frequency transformer, and the output frequency of frequency transformer is stirred in control;
Described stirring frequency transformer sends control signal according to the steering order that stirs control module to variable-frequency motor (8), the running speed of control variable-frequency motor (8);
Described variable-frequency motor (8) is connected with agitator (9), the velocity of rotation of control agitator (9).
3. sugarcane juice transfer container as claimed in claim 2 is characterized in that:
Described stirring control module comprises regularly submodule and stirring velocity control submodule;
Described timing submodule is used for setting scavenging period, when the scavenging period that arrives setting or scavenging period end, sends steering order to stirring velocity and controls submodule;
Stirring velocity control submodule is according to steering order, and the operating frequency of frequency transformer is stirred in control, thereby control variable-frequency motor (8) drives the velocity of rotation of agitator (9).
4. sugarcane juice transfer container as claimed in claim 1, it is characterized in that: described fluid level control device comprises liquid level detector (7), liquid level control module, goes out the juice frequency transformer;
Described liquid level detector (7) is connected with cylinder (1), is used for detecting the liquid level in the cylinder (1), and liquid level information is passed to the liquid level control module;
Described liquid level control module is according to the liquid level information that receives, and output controls signal to out the juice frequency transformer accordingly;
Describedly go out the juice frequency transformer according to the control signal of liquid level control module, the control frequency conversion goes out the rotating speed of juice pump (4).
5. sugarcane juice transfer container as claimed in claim 4 is characterized in that: a kind of in differential pressure transmitter, magnetic turnover panel liquidometer, glass tubular type liquidometer, glass plate type liquidometer, electronic floating ball lever meter, electronic float level meter, magnetostriction liquidometer, ultrasonic level gage, the throw-in type fluid level transmitter of described liquid level detector (7).
6. sugarcane juice transfer container as claimed in claim 4, it is characterized in that: described liquid level detector (7) is fluid level transmitter; Described liquid level control module comprises the PID setter;
Described fluid level transmitter detects the liquid level information in the cylinder (1), and is that analog current signal is passed to the PID setter with the liquid level information translation;
Described PID setter carries out A/D with the analog current signal that receives and is converted into the liquid level numerical signal, calculates, and through D/A calculation result is converted into current signal again and transfers to out the juice frequency transformer;
Describedly go out the juice frequency transformer according to the current signal regulating frequency output of PID setter output, the control frequency conversion goes out the rotating speed of juice pump (4).
7. sugarcane juice transfer container as claimed in claim 4, it is characterized in that: described liquid level control module also comprises the variable frequency pump pilot circuit;
Described PID setter is electrically connected with the variable frequency pump pilot circuit, sends steering order to the variable frequency pump pilot circuit according to liquid level information;
The variable frequency pump pilot circuit is according to steering order, and the control frequency conversion goes out the unlatching of juice pump or closes.
8. sugarcane juice method for transfer is characterized in that may further comprise the steps:
A, sugarcane juice enter in the cylinder (1) by advancing juice mouth (2), liquid level is along with the inflow of sugarcane juice is constantly risen, fluid level control device detects the liquid level information in the cylinder (1), control the running speed that frequency conversion goes out juice pump (4) according to liquid level information and the difference of setting liquid level, thereby the liquid level in the control cylinder (1), the stable transfer output that keeps sugarcane juice;
B, when the needs clean container, start whipping appts, the rotation by whipping appts drives the liquid in rotation in the cylinder (1), thereby realizes that container cleans.
9. sugarcane juice method for transfer is characterized in that may further comprise the steps:
A, sugarcane juice enter in the cylinder (1) by advancing juice mouth (2), liquid level is along with the inflow of sugarcane juice is constantly risen, fluid level control device detects the liquid level information in the cylinder (1), control the running speed that frequency conversion goes out juice pump (4) according to liquid level information and the difference of setting liquid level, thereby the liquid level in the control cylinder (1), the stable transfer output that keeps sugarcane juice;
B, the default scavenging period of stirring control module and cleaning countdown length;
C, before scavenging period, stir control module and drive agitator (9) low-speed running by stirring Frequency Converter Control variable-frequency motor (8);
D, when arriving default scavenging period, stir control module and start and clean countdown, send the cleaning initiating signal to stirring frequency transformer, stir frequency transformer output maximum frequency, run up thereby control variable-frequency motor (8) drives agitator (9);
E, when cleaning countdown when finishing, stir control module and send the cleaning end signal to stirring frequency transformer, stir the reduction output frequency of frequency transformer, control variable-frequency motor (8) drives agitator (9) and recovers low-speed running.
10. sugarcane juice method for transfer is characterized in that may further comprise the steps:
A, sugarcane juice enter in the cylinder (1) by advancing juice mouth (2), liquid level is along with the inflow of sugarcane juice is constantly risen, fluid level control device detects the liquid level information in the cylinder (1), and default two of fluid level control device is set liquid level, is respectively normal operation liquid level and cleans liquid level;
B, the default scavenging period of stirring control module and cleaning countdown length;
C, before scavenging period, the interior level stability of fluid level control device control cylinder (1) is in normal operation liquid level, the stable transfer output that keeps sugarcane juice is stirred control module and is driven agitator (9) low-speed running by stirring Frequency Converter Control variable-frequency motor (8);
D, when arriving default scavenging period, stir control module and send the wash procedure pre-actuation signal to fluid level control device, liquid level in the fluid level control device control cylinder (1) arrives cleans liquid level, fluid level control device returns the liquid level ready signal to stirring control module, stir control module and start the cleaning countdown, send the cleaning initiating signal to stirring frequency transformer, stir frequency transformer output maximum frequency, run up thereby control variable-frequency motor (8) drives agitator (9);
E, when cleaning countdown when finishing, stir control module and send the cleaning end signal to fluid level control device and stirring frequency transformer, liquid level in the fluid level control device control cylinder (1) is recovered normal operation liquid level, recover the stable output of sugarcane juice, stir the reduction output frequency of frequency transformer, control variable-frequency motor (8) drives agitator (9) and recovers low-speed running.
11. a sugarcane juice method for transfer is characterized in that may further comprise the steps:
A, sugarcane juice enter in the cylinder (1) by advancing juice mouth (2), liquid level is along with the inflow of sugarcane juice is constantly risen, fluid level control device detects the liquid level information in the cylinder (1), and default two of fluid level control device is set liquid level, is respectively normal operation liquid level and cleans liquid level;
B, the default scavenging period of timing submodule and cleaning countdown length;
C, before scavenging period, the interior level stability of described fluid level control device control cylinder (1) is in normal operation liquid level, the stable transfer output that keeps sugarcane juice, described stirring velocity control submodule drives agitator (9) low-speed running by stirring Frequency Converter Control variable-frequency motor (8);
D, when arriving default scavenging period, described timing submodule sends the wash procedure pre-actuation signal to fluid level control device, liquid level in the fluid level control device control cylinder (1) arrives cleans liquid level, fluid level control device returns the liquid level ready signal to timing submodule and stirring velocity control submodule, regularly submodule starts the cleaning countdown, stirring velocity control submodule sends the cleaning initiating signal to stirring frequency transformer, stir frequency transformer output maximum frequency, run up thereby control variable-frequency motor (8) drives agitator (9);
E, when cleaning countdown when finishing, regularly submodule sends the cleaning end signal to fluid level control device and stirring velocity control submodule, liquid level in the fluid level control device control cylinder (1) is recovered normal operation liquid level, stirring velocity control submodule sends to clean to the stirring frequency transformer finishes signal, stir frequency transformer and reduce output frequency, control variable-frequency motor (8) drives agitator (9) and recovers low-speed running.
12. as any one described sugarcane juice method for transfer of claim 8-11, it is characterized in that:
Described fluid level control device comprises liquid level detector (7), liquid level control module, goes out the juice frequency transformer; Described liquid level detector (7) is fluid level transmitter; Described liquid level control module comprises the PID setter;
Described fluid level transmitter detects the liquid level information in the cylinder (1), and is that analog current signal is passed to the PID setter with the liquid level information translation;
Described PID setter is preset limit value, the analog current signal that receives is carried out A/D be converted into the liquid level numerical signal, carries out the difference computing with limit value, is converted into current signal through D/A again and transfers to out the juice frequency transformer;
Describedly go out the juice frequency transformer according to the current signal regulating frequency output of PID setter output, the control frequency conversion goes out the rotating speed of juice pump (4).
13. as any one described sugarcane juice transfer container of claim 12, it is characterized in that:
Described liquid level control module also comprises the variable frequency pump pilot circuit, is used for the control frequency conversion and goes out the unlatching of juice pump or close;
Described PID setter also is preset with higher limit and lower value;
When the liquid level numerical signal is higher than higher limit, the PID setter sends instruction and uses the frequency conversion of juice Frequency Converter Control and go out juice pump (4) full speed running, when the liquid level numerical signal is lower than higher limit, whole liquid level control module is recovered original control method, and namely the difference conversion result according to liquid level numerical signal and limit value controls the running that frequency conversion goes out juice pump (4);
When the liquid level numerical signal was lower than lower value, the PID setter sent liquid level and crosses low signal to the variable frequency pump pilot circuit, closed frequency conversion by the variable frequency pump pilot circuit and went out juice pump (4); When the liquid level numerical signal is higher than lower value, the variable frequency pump pilot circuit is opened frequency conversion and is gone out juice pump (4), whole liquid level control module is recovered original control method, and namely the difference conversion result according to liquid level numerical signal and limit value controls the running that frequency conversion goes out juice pump (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310245369.4A CN103266183B (en) | 2013-06-20 | 2013-06-20 | Cane juice transit container and method |
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| CN105259939A (en) * | 2015-11-12 | 2016-01-20 | 南宁糖业股份有限公司 | Brown-granulated-sugar re-dissolution constant current system |
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