CN107486114B - Multi-magnetic-circuit multi-stage fluid reaction system based on induction electric field and application thereof - Google Patents
Multi-magnetic-circuit multi-stage fluid reaction system based on induction electric field and application thereof Download PDFInfo
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- CN107486114B CN107486114B CN201710867450.4A CN201710867450A CN107486114B CN 107486114 B CN107486114 B CN 107486114B CN 201710867450 A CN201710867450 A CN 201710867450A CN 107486114 B CN107486114 B CN 107486114B
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
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Abstract
The invention discloses a multi-magnetic circuit multi-level fluid reaction system based on an induction electric field and application thereof. A multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field, comprising: a closed magnetic circuit system, comprising: the device comprises more than one main magnetic circuit and more than two branch magnetic circuits, wherein each branch magnetic circuit and one main magnetic circuit form a closed loop, a primary coil is wound on the main magnetic circuit and/or the branch magnetic circuits, a secondary coil is wound on the main magnetic circuit and/or the branch magnetic circuits, the secondary coil comprises a spiral pipeline through which feed liquid can circulate, and an induction cavity is arranged on the main magnetic circuit and/or the branch magnetic circuits and is used for accommodating the secondary coil; and the power supply system comprises more than one programmable power supply module, wherein the programmable power supply module is electrically connected with the primary coil and provides excitation voltage for the primary coil. The multi-magnetic circuit multi-stage fluid reaction system provided by the invention has the advantages of compact structure and convenience in application, and is suitable for wide application in the fields of sterilization, enzyme deactivation, chemical electrocatalytic treatment and the like.
Description
Technical Field
The invention particularly relates to a multi-magnetic-circuit multi-level fluid reaction system based on an induced electric field and application thereof, and belongs to the technical field of electrocatalytic processing in the fields of biochemistry, medical treatment, food and environment.
Background
Current electric field processing techniques such as ohmic heating and high voltage pulsed electric field processing all require the use of electrodes to generate a potential difference of sufficient strength. The sample may be left to stand in the electrode for processing or the processing may be accomplished in a continuous stream through the electrode. The electric field processing has thermal effect and non-thermal effect, the thermal effect is mainly caused by the large-scale reciprocating movement of charged solutes under the action of Electromigration (Electromigration), and the chemical reaction rate can be improved; the non-thermal effect is mainly cell membrane breakage caused by Electroporation (electric corporation) or electric breakdown (Electric breakdown), and further causes overflow of intracellular solutes and death of microorganisms, thereby completing rapid extraction of functional components and sterilization and enzyme deactivation of foods at normal temperature or lower. However, these techniques all use metal electrodes, and even with the protection of oxide films, the sample is processed for a long time in extreme environments, especially in acidic, alkaline environments and high temperature processing, which still causes electrochemical reactions, corrosion of the plate surfaces, leakage of heavy metals and sample contamination to varying degrees. Therefore, an electric potential difference, namely an induced electric field, is generated between the induction cavities by using alternating magnetic flux, so that the use of a counter electrode is avoided, and the problems are solved.
Disclosure of Invention
The invention mainly aims to provide a multi-magnetic-circuit multi-stage fluid reaction system based on an induction electric field and application thereof, so as to overcome the defects of the prior art.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention comprises the following steps:
the embodiment of the invention provides a multi-magnetic circuit multi-stage fluid reaction system based on an induction electric field, which comprises the following components:
a closed magnetic circuit system, comprising:
more than one main magnetic circuit and more than two branch magnetic circuits, each branch magnetic circuit and a main magnetic circuit form a closed loop,
a primary coil wound around the main magnetic circuit and/or the branch magnetic circuit,
a secondary coil wound around the main magnetic circuit and/or the branch magnetic circuit, the secondary coil including a spiral pipe through which feed liquid can flow,
an induction cavity arranged on the main magnetic circuit and/or the branch magnetic circuit and used for accommodating the secondary coil; and
the power supply system comprises more than one programmable power supply module, wherein the programmable power supply module is electrically connected with the primary coil and provides excitation voltage for the primary coil.
The embodiment of the invention also provides application of the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system in the fields of biochemistry, medical treatment, food or environment.
The embodiment of the invention also provides a material liquid treatment method, which is implemented by the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system, and comprises the following steps:
according to actual needs, the positions of the induction cavities on the main magnetic circuit and/or the branch magnetic circuit of the closed magnetic circuit system are adjusted, and/or the conductivity of a constant-temperature medium flowing through a constant-temperature jacket is adjusted, and/or the temperature of feed liquid flowing through the induction cavities is regulated, and/or the excitation voltage and/or the alternating frequency applied to the primary coils are adjusted according to the working principle of a transformer, so that different potential differences are generated between two adjacent induction cavities, and a plurality of processing sections with different potential differences are formed in the multi-magnetic circuit multi-stage fluid reaction system; and
and (3) inputting the feed liquid to be treated into the multi-magnetic-circuit multi-stage fluid reaction system for treatment.
Preferably, the method further comprises: the polarity of the output voltage of the induction cavity is further adjusted by adjusting the winding direction of the secondary coil in the induction cavity.
Compared with the prior art, the multi-magnetic-circuit multi-stage fluid reaction system provided by the invention has the characteristics of compact structure, convenience in application, high processing efficiency and the like, and particularly, the overall working performance of the multi-magnetic-circuit multi-stage fluid reaction system can be simply adjusted according to actual needs, so that the multi-magnetic-circuit multi-stage fluid reaction system is suitable for being widely applied to the fields of sterilization, enzyme deactivation, chemical electrocatalytic treatment and the like.
Drawings
FIG. 1 is a schematic diagram of an induction chamber of a multi-magnetic circuit multi-secondary fluid reactor based on an induction field in an exemplary embodiment of the invention
FIG. 2 is a schematic diagram of a multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field in embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of three-stage magnetic circuit dimensions of a multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field according to embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of a three-stage magnetic circuit structure of a multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field in embodiment 1 of the present invention;
FIG. 5 is a schematic diagram showing the distribution of induction cavities in a three-stage magnetic circuit in a multi-magnetic circuit multi-stage fluid reaction system based on an induction electric field in embodiment 1 of the present invention;
FIG. 6 is a schematic diagram of an equivalent connection circuit of a sample coil of an induction cavity in a multi-magnetic circuit multi-stage fluid reaction system based on an induction electric field in embodiment 1 of the present invention;
FIG. 7 is a schematic diagram showing the flow of a constant temperature medium through an induction cavity in a multi-magnetic circuit multi-stage fluid reaction system based on an induction electric field according to embodiment 1 of the present invention;
FIG. 8 is a schematic diagram of a multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field in an exemplary embodiment 2 of the present invention;
FIG. 9 is a schematic diagram of five-stage magnetic circuit dimensions of a multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field according to embodiment 2 of the present invention;
FIG. 10 is a schematic diagram of a five-stage magnetic circuit structure of a multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field in embodiment 2 of the present invention;
FIG. 11 is a schematic diagram showing the distribution of induction cavities in a five-stage magnetic circuit in a multi-magnetic circuit multi-stage fluid reaction system based on an induction electric field in embodiment 2 of the present invention;
FIG. 12 is a schematic diagram of an equivalent connection circuit of a sample coil of an induction cavity in a multi-magnetic circuit multi-stage fluid reaction system based on an induction electric field in embodiment 2 of the present invention;
FIG. 13 is a schematic diagram showing the flow of a constant temperature medium through an induction cavity in a multi-magnetic circuit multi-stage fluid reaction system based on an induction electric field according to embodiment 2 of the present invention;
reference numerals illustrate: 100-sensing cavity; 101-sample inlet; 102-sample outlet; 103-circulating a constant temperature medium inlet; 104-a circulating constant temperature medium outlet; 105-a constant temperature jacket; 106-sample coil; 107-sealing rings; 108-alternating power supply; 109-constant temperature circulating water bath; 110-plunger pump; 111 a collection container; 112-a mixer; 113-a metering pump a; 114-metering pump b; 115-reagent bottle a; 116-reagent bottle b; 117-collection bottle; 118-heat exchanger a; 119-heat exchanger b; 201-primary coil; 202-three-stage magnetic circuit; 203-five stages of magnetic circuits; 300-constant temperature medium flow direction; 400-sample flow direction.
Detailed Description
In view of the shortcomings in the prior art, the inventor of the present invention has long studied and practiced in a large number of ways to propose the technical scheme of the present invention. The technical scheme, the implementation process, the principle and the like are further explained as follows.
In one aspect, an embodiment of the present invention provides a multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field, including:
a closed magnetic circuit system, comprising:
more than one main magnetic circuit and more than two branch magnetic circuits, each branch magnetic circuit and a main magnetic circuit form a closed loop,
a primary coil wound around the main magnetic circuit and/or the branch magnetic circuit,
a secondary coil wound around the main magnetic circuit and/or the branch magnetic circuit, the secondary coil including a spiral pipe through which feed liquid can flow,
an induction cavity arranged on the main magnetic circuit and/or the branch magnetic circuit and used for accommodating the secondary coil; and
the power supply system comprises more than one programmable power supply module, wherein the programmable power supply module is electrically connected with the primary coil and provides excitation voltage for the primary coil.
Further, the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system may further include:
and the feed liquid container is at least used for being communicated with the spiral pipeline.
Further, the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system may further include:
a pump system for at least driving the feed liquid to flow within the helical piping.
Further, the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system may further include:
the temperature control system comprises one or more than two constant temperature circulating water baths, the constant temperature circulating water baths are communicated with a constant temperature jacket, and the constant temperature jacket is at least used for regulating and controlling the temperature of a secondary coil in the induction cavity.
Preferably, the constant temperature jacket is sleeved on the induction cavity, the secondary coil is encapsulated in the induction cavity, and the sample inlet and the sample outlet of the spiral pipeline are arranged on the induction cavity.
Preferably, the induction cavity is sleeved on the main magnetic circuit and/or the branch magnetic circuit.
More preferably, the position of the induction cavity sleeved on the main magnetic circuit and/or the branch magnetic circuit is adjustable.
Preferably, a secondary coil is enclosed within each induction chamber.
More preferably, the winding direction of the secondary coil in each induction cavity is adjustable.
Further, the induction cavities arranged on the main magnetic circuit and/or the branch magnetic circuit of the closed magnetic circuit system are mutually connected in series and/or in parallel.
Further, the secondary coil is wound on the main magnetic circuit and/or the branch magnetic circuit in a clockwise or anticlockwise direction.
Further, the branch magnetic circuit and the main magnetic circuit in the closed magnetic circuit system are integrally arranged.
Further, the sum of the areas of the cross sections of the branch magnetic circuits in the closed magnetic circuit system is equal to the area of the cross section of the main magnetic circuit.
Further, the main magnetic circuit and the branch magnetic circuit are made of any one or more than two of oriented silicon steel iron cores, ferrite iron cores, non-oriented silicon steel iron cores, nickel steel iron cores and amorphous alloy iron cores.
Further, the power supply system comprises a programmable power supply module with the working frequency of 1 Hz-200 kHz.
Further, the conductivity of the constant temperature medium flowing through the constant temperature jacket was 1.10 -6 s·cm -1 -1·10 -18 s·cm -1 。
Furthermore, when the reaction system is in a working state, the potential difference between two adjacent induction cavities is 0-100kV/cm.
The embodiment of the invention also provides the application of the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system in the fields of biochemistry, medical treatment, food or environment.
In another aspect, the embodiment of the invention further provides a material liquid treatment method, which is implemented based on the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system, and comprises the following steps:
according to actual needs, the positions of the induction cavities on the main magnetic circuit and/or the branch magnetic circuit of the closed magnetic circuit system are adjusted, and/or the conductivity of a constant-temperature medium flowing through a constant-temperature jacket is adjusted, and/or the temperature of feed liquid flowing through the induction cavities is regulated, and/or the excitation voltage and/or the alternating frequency applied to the primary coils are adjusted according to the working principle of a transformer, so that different potential differences are generated between two adjacent induction cavities, and a plurality of processing sections with different potential differences are formed in the multi-magnetic circuit multi-stage fluid reaction system; and
and (3) inputting the feed liquid to be treated into the multi-magnetic-circuit multi-stage fluid reaction system for treatment.
Preferably, the method further comprises: and adjusting the polarity of the output voltage of the induction cavity by adjusting the winding direction of the secondary coil in the induction cavity.
Preferably, the method further comprises: the multiple multi-magnetic circuit multi-stage fluid reaction systems are connected in series or in parallel, so that continuous treatment of feed liquid is realized.
Compared with the prior art, the multi-magnetic-circuit multi-level fluid reaction system based on the induction electric field provided by the embodiment of the invention is provided with a plurality of closed magnetic circuits, a plurality of induction cavities are respectively arranged on a main magnetic circuit and a branch magnetic circuit, and according to ohm law of the magnetic circuits, as different magnetomotive forces, namely magnetic potential drops exist in different positions of the magnetic circuits, the specificity utilization of the raw materials on alternating magnetic flux can be realized by adjusting the position layout of the induction cavities in the closed multi-magnetic-circuit system and controlling the conductivity of a circulating constant-temperature medium, and meanwhile, different output voltages are obtained in each induction cavity, so that different potential differences are generated between two adjacent induction cavities, and as the reaction system adopts a multi-magnetic-circuit and multi-level structure to couple the alternating magnetic flux, the system is more compact in structure, a plurality of processing sections with different potential differences can be obtained in the same reaction system, and the processing efficiency of the system is further improved; secondly, the polarity of the output voltage of each induction cavity can be set according to the winding direction of the sample coil in the induction cavity; and in order to improve the processing amount of the product, a plurality of reaction systems can be used after being connected in parallel or in series, so that continuous sterilization, enzyme deactivation and chemical electrocatalytic treatment are finished.
The technical solution, implementation process and principle thereof will be further explained in connection with specific embodiments, and the sample coil mentioned in the embodiments of the present invention can be understood as the aforementioned secondary coil, which includes but is not limited to the sample coil in the embodiments.
Example 1
Referring to fig. 1, an induction chamber 100 in a multi-magnetic circuit multi-stage fluid reaction system based on an induction electric field in this embodiment includes: the induction cavity 100 is of a hollow structure and is provided with an upper opening, and the upper opening is sleeved with the sealing ring 107.
Referring to fig. 2, the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system used in the present embodiment includes 6 induction cavities 100, an alternating power supply 108, a constant temperature circulating water bath 109, a plunger pump 110, a collection container 111, and a closed three-stage magnetic circuit 202 formed by iron cores, wherein a middle magnetic circuit is a main magnetic circuit, left and right side magnetic circuits are branch magnetic circuits, the size of the closed three-stage magnetic circuit 202 is marked with reference to fig. 3, and a height L is shown as follows 1 Length L =40 mm 2 =360 mm, width L 3 =330 mm, two window sizes L 4 =100 mm and L 5 =250 mm; referring to fig. 4, a primary coil 201 with 30 turns is wound on the main magnetic circuit, and a primary coil 201 with 20 turns is wound on each of the two branch magnetic circuits; the primary coil 201 is electrically connected with the alternating power supply 108, and the working frequency of the alternating power supply 108 is 1kHz; referring to fig. 5,6 induction cavities 100 are respectively arranged on two branched magnetic circuits and a main magnetic circuit; wherein 2 induction cavities 100 each containing 40 turns of sample coil 106 are arranged on 2 branch magnetic circuits, and the inner diameter D of the induction cavity 100 1 =80 mm, outer diameter D 2 The height h=120 mm, wherein the winding direction of each sample coil 106 is counterclockwise; 2 induction cavities 100 each containing 60 turns of sample coils 106 are arranged on the main magnetic circuit, and the inner diameter D of each induction cavity 100 1 =120 mm, outer diameter D 2 The height h=120 mm, where the winding direction of each sample coil is counterclockwise.
The 2 induction cavities 100 on each secondary magnetic path are connected with each other first and second to form a parallel structure, namely, a sample inlet 101 is connected with the sample inlet 101, and a sample outlet 102 is connected with the sample outlet 102; meanwhile, 2 induction cavities 100 on the main magnetic circuit are connected end to form a serial structure, namely a sample inlet 101 is connected with a sample outlet 102; finally, the main magnetic circuit and the induction cavities 100 on the two secondary magnetic circuits form a serial structure, and the equivalent connection circuit structure of the sample coil 106 of the reaction system and the sample flow direction 400 are shown in fig. 6; wherein the sample coil 106 comprises a spiral line through which a feed liquid flows and through which the feed liquid flows; the flow of the sample is driven by a plunger pump 110And into the reaction system, the final product flows into collection vessel 111; the induction cavity 100 is provided with a circulating constant temperature medium inlet 103 and a circulating constant temperature medium outlet 104, the temperature of the constant temperature medium is controlled by a constant temperature circulating water bath 109, the flowing direction 300 of the constant temperature medium and the flowing mode of the constant temperature medium in the reaction system are shown in fig. 7; the inner diameter of the tube of the sample coil is 2mm, and the outer diameter of the tube is 3mm; the iron core material constituting the magnetic circuit is formed by overlapping oriented silicon steel sheets with the thickness of 0.08 mm. The cross-sectional area of the two branch magnetic circuits is 16cm respectively 2 The main magnetic path cross-sectional area in the middle is 32cm 2 。
The application of the multi-magnetic-circuit multi-stage fluid reaction system based on the induced electric field in sterilization and enzyme deactivation is further described below by taking juice processing as an example.
Please refer to the following steps:
step one: washing and peeling watermelon, cutting into 5cm×5cm pieces, pulping in a masher, centrifuging the pulp at 8000rpm for 20min, and filtering the supernatant with two layers of filter cloth to remove fruit residue to obtain clear watermelon juice sample. The watermelon juice is divided into 3 groups for treatment, namely an induction electric field group, a control group and a blank group, wherein the treatment capacity of each time is 1L;
step two: the constant temperature circulation water bath 109 was turned on and the temperature was set to 12℃and the circulated constant temperature medium was absolute ethanol (conductivity 1.24.10) -16 s·cm -1 ) At this time, the constant temperature medium flows in from the circulating constant temperature medium inlet 103 of each sensing cavity 100, flows out from the circulating constant temperature medium outlet 104 and enters the constant temperature jacket 105 of the next sensing cavity 100, in this embodiment, 6 sensing cavities 100 are used, and the sample coils 106 are all anticlockwise, so that the polarity of the output voltage of each sensing cavity 100 is consistent;
step three: the alternating power supply 108 is turned on to select the frequency to be 1kHz, the voltage to be 1kV, the primary coil 201 in the closed three-stage magnetic circuit 202 is excited, and the instantaneous polarity potential of each induction cavity 100 in the reaction system is V according to the working principle of a transformer a ＝+1kV，V b ＝+1kV，V c ＝-1kV，V d ＝+1kV，V e ＝-1kV，V f ＝+1kV，V g ＝-1kV，V h -1kV; the length of each section of the pipeline is L ac ＝20cm，L bc ＝20cm，L de ＝10cm，L fg ＝20cm，L fh The potential difference or the induced electric field strength of each section of the pipeline is E ac ＝100V/cm，E bc ＝100V/cm，E de ＝200V/cm，E fg ＝100V/cm，E fh =100V/cm, turning on the plunger pump 110 again to allow the watermelon juice to flow through the reaction system with a volume flow of 500mL/min for 3min, and finally allowing the watermelon juice to flow out of the reaction system and into the collection container 111, and turning off the alternating power supply 108, the plunger pump 110 and the thermostatic circulation water bath 109;
step four: performing control group treatment, wherein if the other conditions are the same, the sample obtained when the watermelon juice passes through the reaction system but no excitation voltage is applied to the primary coil 201 is the control group; the freshly squeezed watermelon juice without any treatment is a blank group.
Step five: measurement of polyphenol oxidase (PPO) Activity 1.5mL 40 mmol.L was added to a 10mL tube -1 Catechol and 2.3mL of 0.1 mol.L -1 And is allowed to stand in a water bath at 25℃for 5min, then 0.2mL of watermelon juice is added to the system, and the change in absorbance at 420nm is measured over 2min after mixing. PPO activity (Unit) was defined as the number of units per gram of fresh pulp (FW) that caused a change in absorbance at 420nm of 0.001 per minute.
Step six: peroxidase (POD) activity assay: 3mL of 0.1 mol.L was added to a 10mL tube -1 Is prepared from (pH 6.0), 19. Mu.L of guaiacol and 28. Mu.L of 30% H 2 O 2 And standing in a water bath at 25 ℃ for 5min, adding 0.05mL of watermelon juice into the reaction system, mixing uniformly, and measuring the change of the absorbance value within 2min at 470 nm. POD activity (Unit) is defined as the number of units per gram of fresh pulp (FW) that cause a change in absorbance at 470nm of 0.001 per minute.
Step seven: colony count determination: reference AOAC 990.12Petrifilm MT The method performs detection.
After treatment, the PPO activities of the induction electric field group, the control group and the blank group are respectively 1.2 Unit.g -1 ·FW，14.6Unit·g -1 ·FW,15.8Unit·g -1 FW; POD activities were 0.01Unit g, respectively -1 ·FW，0.06Unit·g -1 ·FW，0.07Unit·g -1 FW; the total number of colonies was 0.8log (CFU.mL) -1 )，12.3log(CFU·mL -1 )，11.5log(CFU·mL -1 )。
This indicates that the polyphenol oxidase activity, peroxidase activity and colony count in the watermelon juice are remarkably reduced after the induction electric field treatment of the reaction system.
Example 2
The induction cavity structure used in this embodiment refers to the form in example 1, the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system is shown in fig. 8, and includes 8 induction cavities 100, an alternating power supply 108, a constant temperature circulating water bath 109, a mixer 112, a metering pump a 113, a metering pump b 114, a reagent bottle a 115, a reagent bottle b 116, a collecting bottle 117, a heat exchanger a 118, a heat exchanger b 119, and a closed five-stage magnetic circuit 203 composed of iron cores, wherein the middle one is a main magnetic circuit, the left and right sides are branch magnetic circuits, and the size indication of the closed five-stage magnetic circuit 203 is shown in fig. 9, wherein the height L is as follows 1 Length L =50 mm 2 =840 mm, width L 3 =320 mm, two window sizes L 4 =110 mm and L 5 =220 mm; 80 turns of primary coil 201 are wound on the main magnetic circuit, please refer to fig. 10; the primary coil 201 is electrically connected with the alternating power supply 108, and the working frequency of the alternating power supply 108 is 20kHz; the 8 sensing cavities 100 are respectively arranged on the four branch magnetic paths, please refer to fig. 11; wherein each branch magnetic path is provided with 2 induction cavities 100 containing 160 turns of sample coils 106, and the inner diameter D of the induction cavities 100 1 =80 mm, outer diameter D 2 The height h=100 mm, wherein the winding direction of each sample coil 106 is counterclockwise; all the sensing cavities 100 are connected with each other at the head and tail to form a serial structure, namely, a sample inlet 101 is connected with a sample outlet 102, and a sample coil 106 of the reaction system is equivalently connected with a circuit structure and a sample flow direction 400, see fig. 12; wherein the sample coil 106 comprises a spiral line through which a feed liquid flows and through which the feed liquid flows; is arranged atEach group of samples of the reagent bottle a 115 and the reagent bottle b 116 are respectively driven by a metering pump a 113 and a metering pump b 114 to enter a heat exchanger a 118 and a heat exchanger b 119 to reach a preset temperature, each group of samples are mixed by a mixer 112 and then enter a reaction system, and finally the outflow products enter a collecting bottle 117; the induction cavity 100 is provided with a circulating constant temperature medium inlet 103 and a circulating constant temperature medium outlet 104, the temperature of the constant temperature medium is controlled by a constant temperature circulating water bath 109, and the flowing mode of the constant temperature medium in the reaction system is shown as fig. 13; the inner diameter of the tube of the sample coil is 1mm, and the outer diameter of the tube is 2mm; the iron core material constituting the magnetic circuit is formed by overlapping ferrite. The cross-sectional areas of the four branch magnetic circuits are 25cm respectively 2 The main magnetic path cross section in the middle is 100cm 2 。
The application of the induction electric field-based multi-magnetic circuit multi-stage fluid reaction system in chemical reactions is further described below by taking catalytic reaction extraction as an example.
The reaction comprises the following steps:
step one: respectively pouring 500mL of acetic acid (with the mass concentration of 36%) and 400mL of hydrogen peroxide (with the mass concentration of 60%) into a reagent bottle a 115 for stirring and premixing, and conveying the mixture into a heat exchanger a 118 through a metering pump a 113 (with the mass concentration of 60 mL/min) to enable the temperature to reach 5 ℃; then 300mL of dilute sulfuric acid (3% of mass concentration) contained in the reagent bottle b 116 is conveyed into a heat exchanger b 119 through a metering pump b 114 (20 mL/min) to reach the temperature of 25 ℃; the two groups of reagents enter the mixer 112 at the same time for mixing, and then enter a reaction system;
step two: the constant temperature circulating water bath 109 was started and the temperature was set at 76℃and the constant temperature medium was methyl silicone oil (conductivity 2.53.10) -17 s·cm -1 ) At this time, the constant temperature medium flows in from the circulating constant temperature medium inlet 103 of each sensing cavity 100, flows out from the circulating constant temperature medium outlet 104 and enters the constant temperature jacket 105 of the next sensing cavity 100, in this embodiment, 8 sensing cavities 100 are used, and the sample coils 106 are all anticlockwise, so that the polarity of the output voltage of each sensing cavity 100 is consistent;
step three: the alternating power supply 108 is turned on to select the frequency to be 20kHz, the voltage is 10kV, the primary coil 201 in the closed five-stage magnetic circuit 203 is excited, and the frequency is changedThe working principle of the presser is that the instantaneous polarity potential of each sensing cavity 100 in the reaction system is V a ＝+10kV，V b ＝-10kV，V c ＝+10kV，V d ＝-10kV，V e ＝+10kV，V f ＝-10kV，V g ＝+10kV，V h ＝-10kV，V i ＝+10kV，V j ＝-10kV，V k ＝+10kV，V l ＝-10kV，V m ＝+10kV，V n -10kV; the length of each section of the pipeline is L ab ＝10cm，L cd ＝10cm，L ef ＝10cm，L gh ＝20cm，L ij ＝10cm，L kl ＝10cm，L mn The potential difference or the induced electric field strength of each section of the pipeline is E ab ＝2kV/cm，E cd ＝2kV/cm，E ef ＝2kV/cm，E gh ＝1kV/cm，E ij ＝2kV/cm，E kl ＝2kV/cm，E mn The time for all reagents to pass through the reaction system is 18min, i.e., the reaction time, and the product peracetic acid at the outlet of the final reaction system enters a collection bottle 117, and then the alternating power supply 108, metering pumps 113 and 114 and constant temperature circulation water bath 109 are turned off;
step four: the control group treatment was performed under the same conditions as those described above, and samples obtained when the reagents were passed through the reaction system without applying an excitation voltage to the primary coil 201 were used as the control group.
Step five: after treatment, the mass fractions of peracetic acid in the induction electric field group and the control group products were measured to be 17.5% and 7.4%, respectively. This indicates that the peracetic acid in the product is significantly improved after the induction electric field treatment of the reaction system.
It should be understood that the above embodiments are merely for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and implement the same according to the present invention without limiting the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (12)
1. A method for treating a feed liquid in the biochemical, medical, food or environmental fields, comprising:
providing a multi-magnetic circuit multi-stage fluid reaction system based on an induced electric field, the multi-magnetic circuit multi-stage fluid reaction system comprising:
a closed magnetic circuit system comprising more than one main magnetic circuit and more than two branch magnetic circuits, wherein each branch magnetic circuit and one main magnetic circuit form a closed loop, the sum of the areas of the cross sections of the branch magnetic circuits in the closed magnetic circuit system is equal to the area of the cross section of the main magnetic circuit,
a primary coil wound around the main magnetic circuit and/or the branch magnetic circuit,
a secondary coil wound around the main magnetic circuit and/or the branch magnetic circuit, the secondary coil including a spiral pipe through which feed liquid can flow,
the induction cavity is arranged on the main magnetic circuit and/or the branch magnetic circuit and used for accommodating the secondary coil, the induction cavity is sleeved on the main magnetic circuit and/or the branch magnetic circuit, the position of the induction cavity sleeved on the main magnetic circuit and/or the branch magnetic circuit is adjustable, and the winding direction of the secondary coil in each induction cavity is adjustable;
the temperature control system comprises one or more than two constant temperature circulating water baths which are communicated with a constant temperature jacket, the constant temperature jacket is at least used for regulating and controlling the temperature of a secondary coil in the induction cavity, the constant temperature jacket is sleeved on the induction cavity, the secondary coil is packaged in the induction cavity, and a sample inlet and a sample outlet of the spiral pipeline are arranged on the induction cavity; and
the power supply system comprises more than one programmable power supply module, wherein the programmable power supply module is electrically connected with the primary coil and provides excitation voltage for the primary coil;
the method comprises the steps of inputting feed liquid to be treated into the multi-magnetic circuit multi-level fluid reaction system, adjusting the positions of all induction cavities on a main magnetic circuit and/or a branch magnetic circuit of the closed magnetic circuit system, and/or adjusting the conductivity of a constant-temperature medium flowing through each constant-temperature jacket, and/or adjusting the temperature of the feed liquid flowing through each induction cavity, and/or adjusting the excitation voltage and/or alternating frequency applied to each primary coil, so that different potential differences are generated between two adjacent induction cavities, and a plurality of processing sections with different potential differences are formed in the multi-magnetic circuit multi-level fluid reaction system.
2. The feed liquid processing method according to claim 1, characterized by further comprising:
a feed liquid container at least for communicating with the spiral pipe;
and/or a pump system for at least forcing the feed liquid to flow within the helical piping.
3. The method of claim 1, wherein a secondary coil is enclosed within each sensing chamber.
4. The method for treating feed liquid according to claim 1, wherein: the induction cavities arranged on the main magnetic circuit and/or the branch magnetic circuit of the closed magnetic circuit system are mutually connected in series and/or in parallel.
5. The method for treating feed liquid according to claim 1, wherein: the secondary coil is wound on the main magnetic circuit and/or the branch magnetic circuit in a clockwise or anticlockwise direction.
6. The method for treating feed liquid according to claim 1, wherein: the branch magnetic circuit and the main magnetic circuit in the closed magnetic circuit system are integrally arranged.
7. The method for treating feed liquid according to claim 1, wherein: the main magnetic circuit and the branch magnetic circuit are made of any one or more than two of oriented silicon steel iron cores, ferrite iron cores, non-oriented silicon steel iron cores, nickel steel iron cores and amorphous alloy iron cores.
8. The method for treating feed liquid according to claim 1, wherein: the power supply system comprises a programmable power supply module with the working frequency of 1 Hz-200 kHz.
9. The method for treating feed liquid according to claim 1, wherein: the conductivity of the temperature control medium flowing in the constant temperature jacket is 1.10 -6 s·cm -1 -1·10 -18 s·cm -1 。
10. The method for treating feed liquid according to claim 1, wherein: when the reaction system is in a working state, the potential difference between two adjacent induction cavities is 0-100kV/cm.
11. The feed solution processing method according to claim 1, wherein the method further comprises: and adjusting the polarity of the output voltage of the induction cavity by adjusting the winding direction of the secondary coil in the induction cavity.
12. The feed solution processing method according to claim 1, wherein the method further comprises: the multiple multi-magnetic circuit multi-stage fluid reaction systems are connected in series and/or in parallel, so that continuous treatment of feed liquid is realized.
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| PCT/CN2017/103696 WO2019056401A1 (en) | 2017-09-22 | 2017-09-27 | Induced electric field-based multi-magnetic path, multi-stage fluid reaction system and application thereof |
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| CN109618439B (en) * | 2018-12-27 | 2021-05-28 | 英都斯特(无锡)感应科技有限公司 | Star-star type three-phase induction thermal reactor |
| WO2020133099A1 (en) * | 2018-12-27 | 2020-07-02 | 英都斯特(无锡)感应科技有限公司 | Continuous induction heating reactor |
| MX2022000178A (en) * | 2019-07-02 | 2022-05-18 | Kytopen Corp | Devices, systems, and kits for electro-mechanical delivery and methods of use thereof. |
| TWI726737B (en) * | 2020-06-02 | 2021-05-01 | 中國鋼鐵股份有限公司 | Measuring device for distinguishing split cores of different materials |
| CN111982976B (en) * | 2020-08-30 | 2022-04-08 | 广东利诚检测技术有限公司 | Method for detecting alum content in sweet potato powder based on heterogeneous equal-difference induced potential |
| CN112189778B (en) * | 2020-09-30 | 2022-05-24 | 江南大学 | Three-phase continuous flow induction heat green sterilization system and method |
| CN114245501A (en) * | 2021-12-27 | 2022-03-25 | 英都斯特(无锡)感应科技有限公司 | Integrated magnetoelectric induction heat treatment device and application thereof |
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