CN116116354A - Modified polyester resin polycondensation reaction equipment with intelligent temperature control forming function - Google Patents
Modified polyester resin polycondensation reaction equipment with intelligent temperature control forming function Download PDFInfo
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- CN116116354A CN116116354A CN202310075344.8A CN202310075344A CN116116354A CN 116116354 A CN116116354 A CN 116116354A CN 202310075344 A CN202310075344 A CN 202310075344A CN 116116354 A CN116116354 A CN 116116354A
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- 238000006068 polycondensation reaction Methods 0.000 title claims abstract description 188
- 229920001225 polyester resin Polymers 0.000 title claims abstract description 39
- 239000004645 polyester resin Substances 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 188
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 230000008859 change Effects 0.000 claims abstract description 49
- 238000003756 stirring Methods 0.000 claims abstract description 44
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000004321 preservation Methods 0.000 claims description 92
- 238000001514 detection method Methods 0.000 claims description 77
- 238000001816 cooling Methods 0.000 claims description 56
- 238000000034 method Methods 0.000 claims description 42
- 230000008569 process Effects 0.000 claims description 33
- 230000000630 rising effect Effects 0.000 claims description 31
- 230000009467 reduction Effects 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000013500 data storage Methods 0.000 claims description 22
- 238000007781 pre-processing Methods 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000012935 Averaging Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000011534 incubation Methods 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 description 10
- 238000012937 correction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000013529 heat transfer fluid Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000012696 Interfacial polycondensation Methods 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- Chemical Kinetics & Catalysis (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention belongs to the technical field of modified polyester resin processing, in particular to modified polyester resin polycondensation reaction equipment with an intelligent temperature control forming function, which comprises a polycondensation reaction tank, wherein a heat conduction liquid input mechanism is arranged on the outer wall of one side of the polycondensation reaction tank; according to the invention, the rotation stirring mechanism and the heat conduction liquid input mechanism are mutually matched, so that the uniformity of the distribution of the internal temperature of the equipment is improved, the temperature change condition and the temperature uniformity in the reaction process are monitored and analyzed in real time through the temperature change monitoring feedback module and the temperature uniformity analysis module, and the intelligent temperature control module adjusts and corrects the inside of the polycondensation reaction tank based on the monitoring and analysis result, so that intelligent temperature control forming is realized.
Description
Technical Field
The invention relates to the technical field of modified polyester resin processing, in particular to modified polyester resin polycondensation reaction equipment with an intelligent temperature control forming function.
Background
The polycondensation reaction is short for condensation polymerization reaction, which is to make many identical or different low molecular substances interact to generate high molecular substances, and separate out small molecules at the same time, such as reaction of water, alcohol, ammonia, halide and the like, wherein the polycondensation reaction of the same kind of molecules is called homogeneous polycondensation, the polycondensation reaction of different kinds of molecules is called copolycondensation, the polycondensation reaction can be divided into four types of melt polycondensation, solution polycondensation, interfacial polycondensation and solid phase polycondensation according to reaction conditions, and the structure of the product can be divided into two types of linear polycondensation reaction and bulk polycondensation reaction;
the existing modified polyester resin polycondensation reaction equipment is mainly a polycondensation reaction kettle, is mainly electrically heated through an electric heating mechanism arranged inside, is difficult to ensure uniformity of temperature of each part inside in the polycondensation reaction process, is easy to cause uneven heating of raw materials inside the polycondensation reaction kettle, is poor in internal temperature controllability, cannot monitor and analyze internal Wen Bianzhuang conditions in real time in the polycondensation reaction process, is difficult to realize automatic adjustment and correction of temperature and variable temperature rate in the reaction process, and is low in intelligent degree;
in view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
The invention aims to provide modified polyester resin polycondensation reaction equipment with an intelligent temperature control forming function, and solves the problems that raw materials in a polycondensation reaction kettle are heated unevenly easily, internal Wen Bianzhuang conditions cannot be monitored and analyzed in real time, automatic adjustment and correction of temperature and variable temperature rate in the reaction process are difficult to realize, and the intelligent degree is low in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the modified polyester resin polycondensation reaction equipment with the intelligent temperature control forming function comprises a polycondensation reaction tank, wherein a reaction tank feed inlet is fixedly arranged at the top of the polycondensation reaction tank, a reaction tank discharge outlet with a valve is fixedly arranged at the bottom of the polycondensation reaction tank, a heat conduction liquid input mechanism is fixedly arranged on the outer wall of one side of the polycondensation reaction tank, and a rotary stirring mechanism is arranged in the polycondensation reaction tank; the heat conducting liquid input mechanism comprises an input mechanism mounting plate fixedly mounted on the outer wall of the polycondensation reaction tank, a heat conducting liquid conveying pump is fixedly arranged at the top of the input mechanism mounting plate, a heat conducting liquid input pipe and a heat conducting liquid output pipe are mounted on the heat conducting liquid conveying pump, a temperature and speed measuring box is mounted on the heat conducting liquid output pipe, the other end of the heat conducting liquid output pipe extends into the polycondensation reaction tank and is connected with the rotary stirring mechanism, and a circulating liquid return pipe connected with the rotary stirring mechanism is mounted on the polycondensation reaction tank;
the front outer wall of the polycondensation reaction tank is fixedly provided with an intelligent temperature control panel, the intelligent temperature control panel comprises a processor, a data storage module, a temperature time curve preprocessing module, a temperature change monitoring feedback module, a temperature uniformity analysis module and an intelligent temperature control module, the processor is in communication connection with the data storage module, the temperature time curve preprocessing module, the temperature change monitoring feedback module, the temperature uniformity analysis module and the intelligent temperature control module, and the processor is in communication connection with a reaction data acquisition module; the reaction data acquisition module acquires temperature information at a plurality of positions in the polycondensation reaction tank;
the temperature-time curve pretreatment module is used for pretreating a standard temperature change curve of the polycondensation reaction of the modified polyester resin before the polycondensation reaction, and sending pretreatment information to the processor; the temperature change monitoring feedback module analyzes and judges Wen Bianzhuang conditions in the polycondensation reaction process, and sends corresponding adjusting signals to the processor when judging that the temperature change is abnormal, the temperature uniformity analysis module analyzes and judges the temperature uniformity at each position in the polycondensation reaction tank in the polycondensation reaction process, and sends temperature deviation adjusting signals to the processor when judging that the temperature is uneven; the processor sends the corresponding adjusting signals to the intelligent temperature control module after receiving the adjusting signals, and the intelligent temperature control module sends corresponding adjusting instructions to the heat conducting liquid input mechanism and the rotary stirring mechanism after receiving the adjusting signals.
Further, the specific operation process of the temperature time curve preprocessing module comprises the following steps:
obtaining a standard temperature change curve in a polycondensation reaction tank corresponding to the polycondensation processing requirement of the modified polyester resin through a data storage module, generating a polycondensation reaction two-dimensional coordinate system by taking time as an X axis and temperature as a Y axis, substituting the temperature change curve into a first quadrant of the polycondensation reaction two-dimensional coordinate system, wherein the starting point of the standard temperature change curve is positioned on the Y axis;
all inflection points on a standard temperature change curve in a two-dimensional coordinate system of the polycondensation reaction are obtained, and the standard temperature change curve in the two-dimensional coordinate system is divided into a plurality of temperature changing stages based on the inflection points, wherein the temperature changing stages comprise a temperature increasing stage, a heat preserving stage and a temperature reducing stage;
marking the temperature of the heat preservation stage as a standard heat preservation value; marking the difference between the horizontal coordinates of the two end points in the heating stage as heating time length, marking the absolute value of the difference between the vertical coordinates of the two end points in the heating stage as a heating value, and marking the ratio of the heating value to the heating time length as a standard heating rate; marking the difference between the horizontal coordinates of the two end points in the cooling stage as cooling time length, marking the absolute value of the difference between the vertical coordinates of the two end points in the cooling stage as temperature reduction value, and marking the ratio of the temperature reduction value to the cooling time length as standard temperature reduction rate; the preprocessing information is sent to the processor.
Further, the specific operation process of the temperature change monitoring feedback module comprises the following steps:
when the temperature rise stage is entered, dividing a plurality of temperature rise detection time periods in the temperature rise stage, marking the absolute value of the difference value between the actual temperature rise rate of the temperature rise detection time period and the corresponding standard temperature rise rate as the temperature rise rate difference, and acquiring a corresponding temperature rise rate difference threshold value through a data storage module; comparing the temperature rise difference with a temperature rise speed difference threshold, judging that the temperature rise is normal if the Wen Shengsu difference is smaller than or equal to Wen Shengsu difference threshold, judging that the temperature rise is abnormal and generating a temperature rise adjusting signal if the temperature rise speed difference is larger than Wen Shengsu difference threshold, and sending the temperature rise adjusting signal to a processor;
when entering the heat preservation stage, dividing a plurality of heat preservation detection time periods in the heat preservation stage, marking the absolute value of the difference value between the average temperature of the heat preservation detection time periods and the corresponding standard heat preservation value as a heat preservation difference value, acquiring the corresponding heat preservation difference threshold value through a data storage module, comparing the heat preservation difference value with the heat preservation difference threshold value, judging that the heat preservation is normal if the heat preservation difference value is smaller than or equal to the heat preservation difference threshold value, judging that the heat preservation is abnormal and generating a heat preservation adjusting signal if the heat preservation difference value is larger than the heat preservation difference threshold value, and sending the heat preservation adjusting signal to a processor;
when the cooling stage is entered, dividing a plurality of cooling detection time periods in the cooling stage, marking the absolute value of the difference value between the actual cooling rate of the cooling detection time period and the corresponding standard cooling rate as cooling rate difference, and acquiring a corresponding cooling rate difference threshold value through a data storage module; and comparing the temperature drop speed difference with a temperature drop speed difference threshold, judging that the temperature drop is normal if the Wen Jiangsu difference is smaller than or equal to the temperature drop speed difference threshold, judging that the temperature drop is abnormal if the temperature drop speed difference is larger than the temperature drop speed difference threshold, generating a temperature drop adjusting signal, and sending the temperature drop adjusting signal to the processor.
Further, the method for obtaining the actual temperature rise rate in the temperature rise detection period is as follows:
acquiring temperature rising values of a plurality of positions in the polycondensation reaction tank in a temperature rising detection period, establishing a real temperature rising set, summing the real temperature rising set, taking an average value to obtain a temperature rising average value in the polycondensation reaction tank in the temperature rising detection period, and marking the ratio of the temperature rising average value to the duration of the temperature rising detection period as an actual temperature rising rate;
the method for acquiring the actual temperature drop rate in the temperature drop detection period comprises the following steps:
acquiring temperature reduction values of a plurality of positions in the polycondensation reaction tank in a cooling detection period, establishing a cooling detection real temperature set, summing the cooling detection real temperature set, taking an average value to obtain a temperature reduction average value in the polycondensation reaction tank in the cooling detection period, and marking the ratio of the temperature reduction average value to the duration of the cooling detection period as an actual temperature reduction rate;
the average temperature of the incubation detection period is obtained as follows: the method comprises the steps of obtaining the average temperatures of a plurality of positions in a polycondensation reaction tank in a heat preservation detection period, establishing a heat preservation real temperature set, summing the heat preservation real temperature set, and taking an average value to obtain the average temperature in the polycondensation reaction tank in the heat preservation detection period.
Further, the specific operation process of the temperature uniformity analysis module comprises:
the method comprises the steps of obtaining real-time temperature values of a plurality of positions in a polycondensation reaction tank, obtaining the real-time temperature values through a reaction data acquisition module, establishing a temperature average set of each group of real-time temperature values, carrying out variance processing on the temperature average set to obtain temperature deviation coefficients at corresponding moments, obtaining a temperature deviation threshold through a data storage module, comparing the temperature deviation coefficients with the temperature deviation threshold, judging that the internal temperature of the polycondensation reaction tank is uniform if a Wen Pian coefficient is less than or equal to Wen Pian threshold, judging that the internal temperature of the polycondensation reaction tank is nonuniform if a Wen Pian coefficient is greater than Wen Pian threshold, generating a temperature deviation adjustment signal, and sending the temperature deviation adjustment signal to a processor.
Further, the specific operation process of the intelligent temperature control module comprises the following steps:
when a temperature rise adjusting signal sent by a processor is received, if the actual temperature rise rate of the temperature rise detection period is greater than the corresponding standard temperature rise rate, a control instruction for reducing the temperature of the heat conducting liquid is sent to the heat conducting liquid input mechanism, and if the actual temperature rise rate of the temperature rise detection period is less than the corresponding standard temperature rise rate, a control instruction for improving the temperature of the heat conducting liquid is sent to the heat conducting liquid input mechanism;
when a temperature drop adjusting signal sent by a processor is received, if the actual temperature drop rate of the temperature drop detection period is greater than the corresponding standard temperature drop rate, a control instruction for reducing the input speed of the heat conducting liquid is sent to the heat conducting liquid input mechanism, and if the actual temperature drop rate of the temperature drop detection period is less than the corresponding standard temperature drop rate, a control instruction for increasing the input speed of the heat conducting liquid is sent to the heat conducting liquid input mechanism;
when the heat preservation adjusting signal sent by the processor is received, if the average temperature of the heat preservation detection period is larger than a standard heat preservation value, a control instruction for reducing the input speed of the heat conduction liquid is sent to the heat conduction liquid input mechanism, and if the average temperature of the heat preservation detection period is smaller than the standard heat preservation value, a control instruction for increasing the input speed of the heat conduction liquid is sent to the heat conduction liquid input mechanism;
and when the temperature deviation adjusting signal sent by the processor is received, a control instruction of increasing the stirring speed is sent to the rotary stirring mechanism.
Further, the rotary stirring mechanism comprises a vertical rotary shaft and a liquid outlet fixed box fixedly arranged on the inner top wall of the polycondensation reaction tank, the top end of the vertical rotary shaft is rotationally connected with the liquid outlet fixed box, one end of the circulating liquid return pipe is communicated with the liquid outlet fixed box, the top of the polycondensation reaction tank is fixedly provided with a rotary motor through a motor seat, and the output end of the rotary motor extends into the polycondensation reaction tank and is in meshed transmission connection with the vertical rotary shaft through a driving gear and a driven gear;
the polycondensation reaction tank is fixedly provided with a liquid inlet fixed box at a position close to the bottom, one end of the heat conducting liquid output pipe is communicated with the liquid inlet fixed box, the bottom end of the vertical rotating shaft is rotationally connected with the liquid inlet fixed box, an input channel and an output channel are arranged in the vertical rotating shaft, the input channel is positioned below the output channel, an inlet of the input channel is communicated with the liquid inlet fixed box, and an outlet of the output channel is communicated with the liquid outlet fixed box;
the outer peripheral surface of the vertical rotating shaft is fixedly provided with a hollow stirring shaft communicated with the input channel, the other end of the hollow stirring shaft is connected with a vertical pipe, and the bottom end of the vertical pipe is provided with an arc-shaped pipe communicated with the vertical pipe; the outer peripheral surface of the vertical rotating shaft is fixedly provided with a hollow liquid outlet shaft communicated with the output channel, and the other end of the hollow liquid outlet shaft is connected with the top end of the vertical pipe.
Further, one end of the circulating liquid return pipe, which is far away from the polycondensation reaction tank, is connected with the top of the liquid storage temperature regulating tank, and one end of the heat conducting liquid input pipe, which is far away from the heat conducting liquid conveying pump, is connected with the position, which is close to the bottom, of the liquid storage temperature regulating tank.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, raw materials in the polycondensation reaction tank are stirred through the rotary stirring mechanism, the polycondensation processing effect of the modified polyester resin is promoted, the internal temperature tends to be uniform, the heat conduction liquid is conveyed into the liquid inlet fixing box in the rotary stirring mechanism through the heat conduction liquid input mechanism, the heat conduction liquid enters the hollow stirring shafts, the vertical pipes and the arc pipes through the input channels, the heat conduction liquid is conveyed out through the final circulating liquid return pipe, and the heat conduction liquid is conducted in the stirring process through the mutual matching of the rotary stirring mechanism and the heat conduction liquid input mechanism, so that the uniformity of the distribution of the internal temperature is improved, and the adjustment of the temperature change rate in the polycondensation reaction tank is realized through changing the temperature and the input speed of the heat conduction liquid;
2. according to the invention, the temperature-time curve preprocessing module is used for preprocessing the standard temperature change curve of the polycondensation reaction of the modified polyester resin before the polycondensation reaction, the temperature change monitoring feedback module is used for analyzing and judging Wen Bianzhuang conditions in the polycondensation reaction process, when judging that the temperature change is abnormal, the processor is used for sending a corresponding adjusting signal to the intelligent temperature control module, so that the real-time monitoring and analysis of the temperature change condition in the polycondensation reaction process of the polyester resin are realized, the intelligent temperature control module is used for adjusting the temperature and the input speed of the input heat conducting liquid after receiving the adjusting signal, the adjustment and correction of the temperature change rate in the polycondensation reaction tank are realized, the polycondensation processing of the modified polyester resin can be accurately carried out according to the standard temperature change curve by the polycondensation reaction tank, the purpose of intelligent temperature control molding is achieved, and the intelligent degree is high;
3. according to the invention, the temperature uniformity of each position in the polycondensation reaction tank is analyzed and judged through the temperature uniformity analysis module, when the temperature uniformity is judged, a temperature deviation adjusting signal is sent to the intelligent temperature control module through the processor, and the intelligent temperature control module enables the rotary stirring mechanism to accelerate the stirring of raw materials in the polycondensation reaction tank, so that the raw materials are uniformly distributed and heated, the real-time monitoring and analysis of the temperature of each position in the polycondensation reaction tank are realized, the adjustment and correction are automatically carried out when the temperature uniformity occurs, the polycondensation effect of the modified polyester resin is ensured, and the intelligent degree is further improved.
Drawings
For the convenience of those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a system block diagram of an intelligent temperature control panel according to the present invention;
FIG. 3 is a control block diagram of the intelligent temperature control module of the present invention;
FIG. 4 is a schematic structural view of a polycondensation reaction vessel according to the present invention;
FIG. 5 is a schematic view of a portion of a rotary stirring mechanism according to the present invention;
FIG. 6 is a schematic diagram of the connection of a liquid storage temperature regulating tank, a heat conducting liquid input pipe and a circulating liquid return pipe in the invention;
fig. 7 is a system block diagram of a second embodiment of the present invention.
Reference numerals: 1. a polycondensation reaction tank; 2. an intelligent temperature control panel; 3. a heat transfer fluid input mechanism; 4. a circulating liquid return pipe; 6. a rotary stirring mechanism; 7. a feed inlet of the reaction tank; 8. a discharge port of the reaction tank; 31. a heat transfer fluid transfer pump; 32. a heat transfer fluid input tube; 33. a temperature measuring and speed measuring box; 34. a heat transfer fluid output pipe; 35. an input mechanism mounting plate; 36. a liquid storage temperature regulating box; 61. a vertical rotation shaft; 62. a vertical pipe; 63. an arc tube; 64. a liquid inlet fixing box; 65. a hollow stirring shaft; 66. a hollow liquid outlet shaft; 67. a drive gear; 68. a driven gear; 69. a liquid outlet fixing box; 610. a rotating electric machine; 611. an input channel; 612. and an output channel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
as shown in fig. 1-5, the modified polyester resin polycondensation reaction device with the intelligent temperature control forming function provided by the invention comprises a polycondensation reaction tank 1, wherein a reaction tank feed port 7 is fixedly arranged at the top of the polycondensation reaction tank 1, raw materials required in the polycondensation reaction process of the modified polyester resin are input into the polycondensation reaction tank 1 through the reaction tank feed port 7, a reaction tank discharge port 8 with a valve is fixedly arranged at the bottom of the polycondensation reaction tank 1, the reacted materials are conveyed out through the reaction tank discharge port 8, the valve controls the discharge, and a heat-conducting liquid input mechanism 3 is fixedly arranged on the outer wall of one side of the polycondensation reaction tank 1;
specifically, the heat conducting liquid input mechanism 3 comprises an input mechanism mounting plate 35 fixedly mounted on the outer wall of the polycondensation reaction tank 1, a heat conducting liquid conveying pump 31 is fixedly arranged at the top of the input mechanism mounting plate 35, a heat conducting liquid input pipe 32 and a heat conducting liquid output pipe 34 are mounted on the heat conducting liquid conveying pump 31, and a temperature and speed measuring box 33 is mounted on the heat conducting liquid output pipe 34; an intelligent temperature control panel 2 is fixedly arranged on the outer wall of the front surface of the polycondensation reaction tank 1, and a temperature and speed measuring box 33 detects the temperature and the input speed of the input heat conduction liquid and sends detection data to the intelligent temperature control panel 2;
the inside of the polycondensation reaction tank 1 is provided with a rotary stirring mechanism 6, specifically, the rotary stirring mechanism 6 comprises a vertical rotating shaft 61 and a liquid outlet fixed box 69 fixedly arranged on the inner top wall of the polycondensation reaction tank 1, the top end of the vertical rotating shaft 61 is rotationally connected with the liquid outlet fixed box 69, the polycondensation reaction tank 1 is provided with a circulating liquid return pipe 4, one end of the circulating liquid return pipe 4 is communicated with the liquid outlet fixed box 69, the liquid outlet fixed box 69 conveys heat conducting liquid out through the circulating liquid return pipe 4, the top of the polycondensation reaction tank 1 is fixedly provided with a rotating motor 610 through a motor seat, and the rotating motor 610 drives the vertical rotating shaft 61 to horizontally and circumferentially rotate through a driving gear 67 and a driven gear 68 after being started; a liquid inlet fixed box 64 is fixedly arranged at a position of the polycondensation reaction tank 1 close to the bottom, one end of a heat conducting liquid output pipe 34 is communicated with the liquid inlet fixed box 64, the heat conducting liquid output pipe 34 conveys hot liquid into the liquid inlet fixed box 64, and the bottom end of a vertical rotating shaft 61 is rotationally connected with the liquid inlet fixed box 64;
an input channel 611 and an output channel 612 are arranged in the vertical rotating shaft 61, the input channel 611 is positioned below the output channel 612, the inlet of the input channel 611 is communicated with the liquid inlet fixed box 64, and the outlet of the output channel 612 is communicated with the liquid outlet fixed box 69; the outer peripheral surface of the vertical rotary shaft 61 is fixedly provided with a hollow stirring shaft 65 communicated with the input channel 611, the other end of the hollow stirring shaft 65 is connected with a vertical pipe 62, and the bottom end of the vertical pipe 62 is provided with an arc-shaped pipe 63 communicated with the vertical pipe; the outer peripheral surface of the vertical rotating shaft 61 is fixedly provided with a hollow liquid outlet shaft 66 communicated with the output channel 612, and the other end of the hollow liquid outlet shaft 66 is connected with the top end of the vertical pipe 62;
the intelligent temperature control panel 2 comprises a processor, a data storage module, a temperature time curve preprocessing module, a temperature change monitoring feedback module and an intelligent temperature control module, wherein the processor is in communication connection with the data storage module, the temperature time curve preprocessing module, the temperature change monitoring feedback module and the intelligent temperature control module, and the processor is in communication connection with the reaction data acquisition module; the reaction data acquisition module acquires temperature information at a plurality of positions in the polycondensation reaction tank 1, and comprises temperature sensors arranged at the plurality of positions in the polycondensation reaction tank 1;
the temperature-time curve pretreatment module is used for pretreating a standard temperature change curve of the polycondensation reaction of the modified polyester resin before the polycondensation reaction, and sending pretreatment information to the processor; the specific operation process of the temperature time curve preprocessing module comprises the following steps:
step G1, a standard temperature change curve of a polycondensation reaction process of modified polyester resin is stored in a data storage module, the standard temperature change curve in the polycondensation reaction tank 1 corresponding to the polycondensation processing requirement of the modified polyester resin is obtained through the data storage module, a polycondensation reaction two-dimensional coordinate system is generated by taking time as an X axis and temperature as a Y axis, the standard temperature change curve is substituted into a first quadrant of the polycondensation reaction two-dimensional coordinate system, and the starting point of the standard temperature change curve is positioned on the Y axis;
step G2, dividing the standard temperature change curve in the two-dimensional coordinate system into a plurality of temperature changing stages based on the inflection points by acquiring all inflection points on the standard temperature change curve in the two-dimensional coordinate system of the polycondensation reaction, wherein the temperature changing stages comprise a temperature rising stage, a heat preservation stage and a temperature reduction stage, and the temperature rising, the heat preservation and the temperature reduction can be carried out once or a plurality of times in the polycondensation reaction tank 1 in the polycondensation reaction process of the modified polyester resin, namely one or a plurality of temperature rising stages, heat preservation stages and temperature reduction stages exist in the polycondensation reaction process of the modified polyester resin;
g3, marking the temperature in the heat preservation stage as a standard heat preservation value; marking the difference between the horizontal coordinates of the two end points in the heating stage as heating time length, marking the absolute value of the difference between the vertical coordinates of the two end points in the heating stage as a heating value, and marking the ratio of the heating value to the heating time length as a standard heating rate; marking the difference between the horizontal coordinates of the two end points in the cooling stage as cooling time length, marking the absolute value of the difference between the vertical coordinates of the two end points in the cooling stage as temperature reduction value, and marking the ratio of the temperature reduction value to the cooling time length as standard temperature reduction rate;
and G4, transmitting the preprocessing information to a processor.
The temperature change monitoring feedback module analyzes and judges Wen Bianzhuang conditions in the polycondensation reaction process, and sends corresponding adjusting signals to the processor when judging that the temperature change is abnormal, the processor sends the corresponding adjusting signals to the intelligent temperature control module after receiving the adjusting signals, and the specific operation process of the temperature change monitoring feedback module comprises the following steps:
when the temperature rise stage is started, dividing a plurality of temperature rise detection time periods in the temperature rise stage, marking the absolute value of the difference value between the actual temperature rise rate of the temperature rise detection time period and the corresponding standard temperature rise rate as a temperature rise rate difference, and acquiring a corresponding temperature rise rate difference threshold value through a data storage module, wherein the temperature rise rate difference threshold value is a preset Wen Shengsu difference judgment value and the temperature rise rate difference threshold value is a positive number; comparing the temperature rise difference with a temperature rise speed difference threshold, judging that the temperature rise is normal if the Wen Shengsu difference is smaller than or equal to Wen Shengsu difference threshold, judging that the temperature rise is abnormal and generating a temperature rise adjusting signal if the temperature rise speed difference is larger than Wen Shengsu difference threshold, and sending the temperature rise adjusting signal to a processor;
the method for acquiring the actual temperature rise rate in the temperature rise detection period comprises the following steps: acquiring temperature rising values of a plurality of positions in the polycondensation reaction tank 1 in a temperature rising detection period, establishing a temperature rising detection real temperature set, acquiring and analyzing the temperature rising values by a reaction data acquisition module, summing the temperature rising detection real temperature set, taking an average value to obtain a temperature rising average value in the polycondensation reaction tank 1 in the temperature rising detection period, and marking the ratio of the temperature rising average value to the duration of the temperature rising detection period as an actual temperature rising rate;
when entering the heat preservation stage, dividing a plurality of heat preservation detection time periods in the heat preservation stage, marking the absolute value of the difference value between the average temperature of the heat preservation detection time periods and the corresponding standard heat preservation value as a heat preservation difference value, acquiring the corresponding heat preservation difference threshold value through a data storage module, wherein the heat preservation difference threshold value is a preset heat preservation difference judgment value and the heat preservation difference threshold value is a positive number, comparing the heat preservation difference value with the heat preservation difference threshold value, judging that the heat preservation is normal if the heat preservation difference value is smaller than or equal to the heat preservation difference threshold value, judging that the heat preservation is abnormal and generating a heat preservation adjusting signal, and sending the heat preservation adjusting signal to a processor if the heat preservation difference value is larger than the heat preservation difference threshold value;
the average temperature of the heat preservation detection period is obtained by the following steps: acquiring the average temperatures of a plurality of positions in the polycondensation reaction tank 1 in the heat preservation detection period, establishing a heat preservation real temperature set, acquiring and analyzing the average temperatures by a reaction data acquisition module, and summing and averaging the heat preservation real temperature set to obtain the average temperature in the polycondensation reaction tank 1 in the heat preservation detection period;
when the cooling stage is entered, dividing a plurality of cooling detection time periods in the cooling stage, marking the absolute value of the difference value between the actual cooling rate of the cooling detection time period and the corresponding standard cooling rate as a cooling rate difference, and acquiring a corresponding cooling rate difference threshold value through a data storage module, wherein the cooling rate difference threshold value is a preset Wen Jiangsu difference judgment value and the cooling rate difference threshold value is a positive number; comparing the temperature drop speed difference with a temperature drop speed difference threshold, judging that the temperature drop is normal if the Wen Jiangsu difference is smaller than or equal to the temperature drop speed difference threshold, judging that the temperature drop is abnormal and generating a temperature drop adjusting signal if the temperature drop speed difference is larger than the temperature drop speed difference threshold, and sending the temperature drop adjusting signal to a processor;
the method for acquiring the actual temperature drop rate in the temperature drop detection period comprises the following steps: acquiring temperature reduction values of a plurality of positions in the polycondensation reaction tank 1 in a cooling detection period, establishing a cooling detection real temperature set, acquiring and analyzing the temperature reduction values by a reaction data acquisition module, summing the cooling detection real temperature set, taking an average value to obtain a temperature reduction average value in the polycondensation reaction tank 1 in the cooling detection period, and marking the ratio of the temperature reduction average value to the cooling detection period duration as an actual temperature reduction rate.
The specific operation process of the intelligent temperature control module comprises the following steps:
when a temperature rise adjusting signal sent by a processor is received, if the actual temperature rise rate of a temperature rise detection period is larger than the corresponding standard temperature rise rate, a control instruction for reducing the temperature of the heat conducting liquid is sent to the heat conducting liquid input mechanism 3, and after the control instruction for reducing the temperature of the heat conducting liquid is received by the heat conducting liquid input mechanism 3, the temperature of the heat conducting liquid input into the polycondensation reaction tank 1 is reduced, so that the temperature rise rate in the polycondensation reaction tank 1 is reduced; if the actual temperature rise rate in the temperature rise detection period is smaller than the corresponding standard temperature rise rate, a control instruction for increasing the temperature of the heat conducting liquid is sent to the heat conducting liquid input mechanism 3, and after the control instruction for reducing the temperature of the heat conducting liquid is received by the heat conducting liquid input mechanism 3, the temperature of the heat conducting liquid input into the polycondensation reaction tank 1 is increased, so that the temperature rise rate in the polycondensation reaction tank 1 is increased; in the heating stage, the heat conducting liquid has the function of conducting self heat into the polycondensation reaction tank 1 to raise the internal temperature;
when a temperature drop adjusting signal sent by a processor is received, if the actual temperature drop rate of the temperature drop detection period is larger than the corresponding standard temperature drop rate, and the temperature drop rate is too high at this time, a control instruction for reducing the input speed of the heat conducting liquid is sent to the heat conducting liquid input mechanism 3, and after the control instruction for reducing the input speed of the heat conducting liquid is received by the heat conducting liquid input mechanism 3, the input speed of the heat conducting liquid input into the polycondensation reaction tank 1 is slowed down, so that the temperature drop rate in the polycondensation reaction tank 1 is slowed down; if the actual temperature drop rate in the cooling detection period is smaller than the corresponding standard temperature drop rate, which indicates that the cooling rate is too slow at this time, a control instruction for increasing the input speed of the heat conducting liquid is sent to the heat conducting liquid input mechanism 3, and after the control instruction for increasing the input speed of the heat conducting liquid is received by the heat conducting liquid input mechanism 3, the input speed of the heat conducting liquid input into the polycondensation reaction tank 1 is increased, so that the temperature drop rate in the polycondensation reaction tank 1 is increased; in the cooling stage, the heat conducting liquid is used for absorbing heat in the polycondensation reaction tank 1 to reduce the internal temperature;
when a heat preservation adjusting signal sent by a processor is received, if the average temperature of a heat preservation detection period is larger than a standard heat preservation value, a control instruction for reducing the input speed of the heat conduction liquid is sent to the heat conduction liquid input mechanism 3, and after the control instruction for reducing the input speed of the heat conduction liquid is received by the heat conduction liquid input mechanism 3, the input speed of the heat conduction liquid input into the polycondensation reaction tank 1 is slowed down, so that the reduction of the internal temperature is facilitated; if the average temperature in the heat preservation detection period is smaller than the standard heat preservation value, a control instruction of increasing the input speed of the heat conducting liquid is sent to the heat conducting liquid input mechanism 3, and after the heat conducting liquid input mechanism 3 receives the control instruction of increasing the input speed of the heat conducting liquid, the input speed of the heat conducting liquid input into the polycondensation reaction tank 1 is increased, so that the temperature in the polycondensation reaction tank is increased; in the heat preservation stage, the heat conducting liquid has the function of assisting in maintaining the temperature in the polycondensation reaction tank 1 and compensating the loss of the internal temperature.
Embodiment two:
as shown in fig. 7, the difference between the present embodiment and embodiment 1 is that the intelligent temperature control panel 2 further includes a temperature uniformity analysis module, the processor is in communication connection with the temperature uniformity analysis module, the temperature uniformity analysis module analyzes and determines the temperature uniformity at each position in the polycondensation reaction tank 1 during the polycondensation reaction, and when it is determined that the temperature is not uniform, a temperature deviation adjustment signal is sent to the processor; the specific operation process of the temperature uniformity analysis module is as follows:
acquiring real-time temperature values of a plurality of positions in the polycondensation reaction tank 1, acquiring the real-time temperature values by a reaction data acquisition module, establishing a temperature-average set of each group of real-time temperature values, and performing variance treatment on the temperature-average set to obtain temperature deviation coefficients at corresponding moments, wherein the temperature deviation coefficients represent deviation conditions of real-time temperatures at each position in the polycondensation reaction tank 1, and the larger the numerical value of the temperature deviation coefficient is, the larger the temperature deviation between each position in the polycondensation reaction tank 1 is, and the more uneven the internal raw materials are heated; acquiring a temperature deviation threshold value through a data storage module, wherein the temperature deviation threshold value is a preset judgment value and is a positive number; comparing the temperature deviation coefficient with a temperature deviation threshold value, if the Wen Pian coefficient is smaller than or equal to Wen Pian threshold value, judging that the internal temperature of the polycondensation reaction tank 1 is uniform, if the Wen Pian coefficient is larger than Wen Pian threshold value, judging that the internal temperature of the polycondensation reaction tank 1 is non-uniform, generating a temperature deviation adjusting signal, and transmitting the temperature deviation adjusting signal to a processor;
the intelligent temperature control module sends a control instruction of increasing stirring speed to the rotary stirring mechanism 6 when receiving a temperature deviation adjusting signal sent by the processor, the rotary stirring mechanism 6 accelerates the rotation speed of the vertical rotary shaft 61 after receiving the control instruction of increasing stirring speed, and the intelligent degree is further improved by accelerating the stirring of the internal raw materials so that the raw materials are uniformly distributed and heated, realizing the real-time monitoring and analysis of the temperatures at all positions in the polycondensation reaction tank 1, and automatically adjusting and correcting when the temperature is uneven, thereby ensuring the polycondensation effect of the modified polyester resin.
Embodiment III:
as shown in fig. 6, the difference between this embodiment and embodiments 1 and 2 is that the end of the recycle liquid pipe 4 far from the polycondensation reaction tank 1 is connected to the top of the liquid storage temperature adjusting tank 36, and the end of the heat conducting liquid input pipe 32 far from the heat conducting liquid conveying pump 31 is connected to the position near the bottom of the liquid storage temperature adjusting tank 36; in the working process, the heat conducting liquid input pipe 32 extracts the required heat conducting liquid from the liquid storage temperature regulating box 36, the circulating liquid return pipe 4 conveys the reflux heat conducting liquid into the liquid storage temperature regulating box 36, and the flow path of the heat conducting liquid forms a loop, so that the circulation use of the heat conducting liquid is realized.
The working principle of the invention is as follows: when the polycondensation reaction tank is used, the rotating motor 610 in the rotary stirring mechanism 6 circumferentially rotates the vertical rotating shaft 61 in the horizontal direction through the driving gear 67 and the driven gear 68, so that the hollow stirring shaft 65, the hollow liquid outlet shaft 66, the vertical pipe 62 and the arc-shaped pipe 63 are driven to rotate and stir internal raw materials, the polycondensation processing effect of modified polyester resin is promoted, in the processing process, the heat conducting liquid is conveyed to the liquid inlet fixing tank 64 in the rotary stirring mechanism 6 through the heat conducting liquid conveying pump 31 in the heat conducting liquid input mechanism 3, the heat conducting liquid enters the hollow stirring shafts 65 and the corresponding vertical pipes 62 and the arc-shaped pipes 63 through the input channels 611 by the liquid inlet fixing tank 64, finally the heat conducting liquid enters the liquid outlet fixing tank 69 through the hollow liquid outlet shaft 66 and the output channels 612, the heat conducting liquid is conveyed out by the circulating liquid return pipe 4, the heat conducting liquid is conducted through the heat conducting liquid in the stirring process, the distribution uniformity of the internal temperature is improved, and the temperature change rate in the polycondensation reaction tank 1 is regulated through changing the temperature and the input speed of the heat conducting liquid in the polycondensation reaction process;
the temperature-time curve preprocessing module is used for preprocessing a standard temperature change curve of the polycondensation reaction of the modified polyester resin before the polycondensation reaction, preprocessing information is sent to the processor, the temperature change monitoring feedback module is used for analyzing and judging Wen Bianzhuang conditions in the polycondensation reaction process, a corresponding adjusting signal is sent to the processor when temperature change abnormality is judged, the processor is used for sending the corresponding adjusting signal to the intelligent temperature control module after receiving the adjusting signal, real-time monitoring and analysis of Wen Bianzhuang conditions in the polycondensation reaction process of the polyester resin are realized, the intelligent temperature control module is used for sending a corresponding adjusting instruction to the heat conducting liquid input mechanism 3 after receiving the adjusting signal so as to adjust the temperature and the input speed of the input heat conducting liquid, finally, adjustment and correction of the temperature change rate in the polycondensation reaction tank 1 in the polycondensation reaction process are realized, the polycondensation processing of the modified polyester resin can be accurately carried out according to the standard temperature change curve by the polycondensation reaction tank 1, the intelligent temperature control forming purpose is realized, the intelligent degree is high, and the processing effect is good.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. The modified polyester resin polycondensation reaction device with the intelligent temperature control forming function comprises a polycondensation reaction tank (1), wherein a reaction tank feed inlet (7) is fixedly arranged at the top of the polycondensation reaction tank (1), a reaction tank discharge outlet (8) with a valve is fixedly arranged at the bottom of the polycondensation reaction tank (1), and the modified polyester resin polycondensation reaction device is characterized in that a heat conduction liquid input mechanism (3) is fixedly arranged on the outer wall of one side of the polycondensation reaction tank (1), and a rotary stirring mechanism (6) is arranged in the polycondensation reaction tank (1); the heat conduction liquid input mechanism (3) comprises an input mechanism mounting plate (35) fixedly mounted on the outer wall of the polycondensation reaction tank (1), a heat conduction liquid conveying pump (31) is fixedly arranged at the top of the input mechanism mounting plate (35), a heat conduction liquid input pipe (32) and a heat conduction liquid output pipe (34) are mounted on the heat conduction liquid conveying pump (31), a temperature measurement and speed measurement box (33) is mounted on the heat conduction liquid output pipe (34), the other end of the heat conduction liquid output pipe (34) extends into the polycondensation reaction tank (1) and is connected with a rotary stirring mechanism (6), and a circulating liquid return pipe (4) connected with the rotary stirring mechanism (6) is mounted on the polycondensation reaction tank (1);
an intelligent temperature control panel (2) is fixedly arranged on the front outer wall of the polycondensation reaction tank (1), the intelligent temperature control panel (2) comprises a processor, a data storage module, a temperature time curve preprocessing module, a temperature change monitoring feedback module, a temperature uniformity analysis module and an intelligent temperature control module, the processor is in communication connection with the data storage module, the temperature time curve preprocessing module, the temperature change monitoring feedback module, the temperature uniformity analysis module and the intelligent temperature control module, and the processor is in communication connection with a reaction data acquisition module; the reaction data acquisition module acquires temperature information at a plurality of positions in the polycondensation reaction tank (1);
the temperature-time curve pretreatment module is used for pretreating a standard temperature change curve of the polycondensation reaction of the modified polyester resin before the polycondensation reaction, and sending pretreatment information to the processor; the temperature change monitoring feedback module analyzes and judges Wen Bianzhuang conditions in the polycondensation reaction process, and sends corresponding adjusting signals to the processor when judging that the temperature change is abnormal, the temperature uniformity analysis module analyzes and judges the temperature uniformity at each position in the polycondensation reaction tank (1) in the polycondensation reaction process, and sends temperature deviation adjusting signals to the processor when judging that the temperature is uneven; the processor sends the corresponding adjusting signal to the intelligent temperature control module after receiving the adjusting signal, and the intelligent temperature control module sends the corresponding adjusting instruction to the heat conducting liquid input mechanism (3) and the rotary stirring mechanism (6) after receiving the adjusting signal.
2. The modified polyester resin polycondensation reaction apparatus with intelligent temperature control molding function according to claim 1, wherein the specific operation process of the temperature time curve pretreatment module comprises:
obtaining an internal standard temperature change curve of a polycondensation reaction tank (1) corresponding to the polycondensation processing requirement of the modified polyester resin through a data storage module, generating a polycondensation reaction two-dimensional coordinate system by taking time as an X axis and temperature as a Y axis, substituting the temperature change curve into a first quadrant of the polycondensation reaction two-dimensional coordinate system, wherein the starting point of the standard temperature change curve is positioned on the Y axis;
all inflection points on a standard temperature change curve in a two-dimensional coordinate system of the polycondensation reaction are obtained, and the standard temperature change curve in the two-dimensional coordinate system is divided into a plurality of temperature changing stages based on the inflection points, wherein the temperature changing stages comprise a temperature increasing stage, a heat preserving stage and a temperature reducing stage;
marking the temperature of the heat preservation stage as a standard heat preservation value; marking the difference between the horizontal coordinates of the two end points in the heating stage as heating time length, marking the absolute value of the difference between the vertical coordinates of the two end points in the heating stage as a heating value, and marking the ratio of the heating value to the heating time length as a standard heating rate; marking the difference between the horizontal coordinates of the two end points in the cooling stage as cooling time length, marking the absolute value of the difference between the vertical coordinates of the two end points in the cooling stage as temperature reduction value, and marking the ratio of the temperature reduction value to the cooling time length as standard temperature reduction rate; the preprocessing information is sent to the processor.
3. The modified polyester resin polycondensation reaction apparatus with intelligent temperature control molding function according to claim 1, wherein the specific operation process of the temperature change monitoring feedback module comprises:
when the temperature rise stage is entered, dividing a plurality of temperature rise detection time periods in the temperature rise stage, marking the absolute value of the difference value between the actual temperature rise rate of the temperature rise detection time period and the corresponding standard temperature rise rate as the temperature rise rate difference, and acquiring a corresponding temperature rise rate difference threshold value through a data storage module; comparing the temperature rise difference with a temperature rise speed difference threshold, judging that the temperature rise is normal if the Wen Shengsu difference is smaller than or equal to Wen Shengsu difference threshold, judging that the temperature rise is abnormal and generating a temperature rise adjusting signal if the temperature rise speed difference is larger than Wen Shengsu difference threshold, and sending the temperature rise adjusting signal to a processor;
when entering the heat preservation stage, dividing a plurality of heat preservation detection time periods in the heat preservation stage, marking the absolute value of the difference value between the average temperature of the heat preservation detection time periods and the corresponding standard heat preservation value as a heat preservation difference value, acquiring the corresponding heat preservation difference threshold value through a data storage module, comparing the heat preservation difference value with the heat preservation difference threshold value, judging that the heat preservation is normal if the heat preservation difference value is smaller than or equal to the heat preservation difference threshold value, judging that the heat preservation is abnormal and generating a heat preservation adjusting signal if the heat preservation difference value is larger than the heat preservation difference threshold value, and sending the heat preservation adjusting signal to a processor;
when the cooling stage is entered, dividing a plurality of cooling detection time periods in the cooling stage, marking the absolute value of the difference value between the actual cooling rate of the cooling detection time period and the corresponding standard cooling rate as cooling rate difference, and acquiring a corresponding cooling rate difference threshold value through a data storage module; and comparing the temperature drop speed difference with a temperature drop speed difference threshold, judging that the temperature drop is normal if the Wen Jiangsu difference is smaller than or equal to the temperature drop speed difference threshold, judging that the temperature drop is abnormal if the temperature drop speed difference is larger than the temperature drop speed difference threshold, generating a temperature drop adjusting signal, and sending the temperature drop adjusting signal to the processor.
4. The modified polyester resin polycondensation reaction apparatus having the intelligent temperature control molding function according to claim 3, wherein the obtaining method of the actual temperature rise rate in the temperature rise detecting period is as follows:
acquiring temperature rising values of a plurality of positions in the polycondensation reaction tank (1) in a temperature rising detection period, establishing a real temperature rising set, summing the real temperature rising set, averaging to obtain a temperature rising average value in the polycondensation reaction tank (1) in the temperature rising detection period, and marking the ratio of the temperature rising average value to the time length of the temperature rising detection period as an actual temperature rising rate;
the method for acquiring the actual temperature drop rate in the temperature drop detection period comprises the following steps:
acquiring temperature reduction values of a plurality of positions in the polycondensation reaction tank (1) in a cooling detection period, establishing a cooling detection real temperature set, summing the cooling detection real temperature set, taking an average value to obtain a temperature reduction average value in the polycondensation reaction tank (1) in the cooling detection period, and marking the ratio of the temperature reduction average value to the duration of the cooling detection period as an actual temperature reduction rate;
the average temperature of the incubation detection period is obtained as follows: the method comprises the steps of obtaining the average temperatures of a plurality of positions in a polycondensation reaction tank (1) in a heat preservation detection period, establishing a heat preservation real-temperature set, summing the heat preservation real-temperature set, and taking an average value to obtain the average temperature in the polycondensation reaction tank (1) in the heat preservation detection period.
5. The modified polyester resin polycondensation reaction apparatus having an intelligent temperature control molding function according to claim 1, wherein the specific operation process of the temperature uniformity analysis module comprises:
acquiring real-time temperature values of a plurality of positions in the polycondensation reaction tank (1), acquiring the real-time temperature values by a reaction data acquisition module, establishing a temperature average set of each group of real-time temperature values, performing variance processing on the temperature average set to obtain a temperature deviation coefficient at a corresponding moment, acquiring a temperature deviation threshold value by a data storage module, comparing the temperature deviation coefficient with the temperature deviation threshold value, judging that the internal temperature of the polycondensation reaction tank (1) is uniform if the Wen Pian coefficient is less than or equal to Wen Pian threshold value, judging that the internal temperature of the polycondensation reaction tank (1) is nonuniform if the Wen Pian coefficient is greater than Wen Pian threshold value, generating a temperature deviation adjustment signal, and sending the temperature deviation adjustment signal to a processor.
6. The modified polyester resin polycondensation reaction apparatus having an intelligent temperature control molding function according to claim 1, wherein the specific operation process of the intelligent temperature control module comprises:
when a temperature rise adjusting signal sent by a processor is received, if the actual temperature rise rate of the temperature rise detection period is greater than the corresponding standard temperature rise rate, a control instruction for reducing the temperature of the heat conducting liquid is sent to the heat conducting liquid input mechanism (3), and if the actual temperature rise rate of the temperature rise detection period is less than the corresponding standard temperature rise rate, a control instruction for increasing the temperature of the heat conducting liquid is sent to the heat conducting liquid input mechanism (3);
when a temperature drop adjusting signal sent by a processor is received, if the actual temperature drop rate of the temperature drop detection period is greater than the corresponding standard temperature drop rate, a control instruction for reducing the input speed of the heat conducting liquid is sent to the heat conducting liquid input mechanism (3), and if the actual temperature drop rate of the temperature drop detection period is less than the corresponding standard temperature drop rate, a control instruction for increasing the input speed of the heat conducting liquid is sent to the heat conducting liquid input mechanism (3);
when the heat preservation adjusting signal sent by the processor is received, if the average temperature of the heat preservation detection period is larger than a standard heat preservation value, a control instruction for reducing the input speed of the heat conduction liquid is sent to the heat conduction liquid input mechanism (3), and if the average temperature of the heat preservation detection period is smaller than the standard heat preservation value, a control instruction for increasing the input speed of the heat conduction liquid is sent to the heat conduction liquid input mechanism (3);
when the temperature deviation adjusting signal sent by the processor is received, a control instruction of increasing the stirring speed is sent to the rotary stirring mechanism (6).
7. The modified polyester resin polycondensation reaction device with the intelligent temperature control forming function according to claim 1, wherein the rotary stirring mechanism (6) comprises a vertical rotary shaft (61) and a liquid outlet fixed box (69) fixedly arranged on the inner top wall of the polycondensation reaction tank (1), the top end of the vertical rotary shaft (61) is rotationally connected with the liquid outlet fixed box (69), one end of the circulating liquid return pipe (4) is communicated with the liquid outlet fixed box (69), a rotary motor (610) is fixedly arranged on the top of the polycondensation reaction tank (1) through a motor base, and the output end of the rotary motor (610) extends into the polycondensation reaction tank (1) and is in meshed transmission connection with the vertical rotary shaft (61) through a driving gear (67) and a driven gear (68);
the polycondensation reaction tank (1) is fixedly provided with a liquid inlet fixing box (64) at a position close to the bottom, one end of the heat conducting liquid output pipe (34) is communicated with the liquid inlet fixing box (64), the bottom end of the vertical rotary shaft (61) is rotationally connected with the liquid inlet fixing box (64), an input channel (611) and an output channel (612) are arranged in the vertical rotary shaft (61), the input channel (611) is positioned below the output channel (612), the inlet of the input channel (611) is communicated with the liquid inlet fixing box (64), and the outlet of the output channel (612) is communicated with the liquid outlet fixing box (69);
the outer peripheral surface of the vertical rotating shaft (61) is fixedly provided with a hollow stirring shaft (65) communicated with the input channel (611), the other end of the hollow stirring shaft (65) is connected with a vertical pipe (62), and the bottom end of the vertical pipe (62) is provided with an arc-shaped pipe (63) communicated with the vertical pipe; the outer peripheral surface of the vertical rotating shaft (61) is fixedly provided with a hollow liquid outlet shaft (66) communicated with the output channel (612), and the other end of the hollow liquid outlet shaft (66) is connected with the top end of the vertical pipe (62).
8. The modified polyester resin polycondensation reaction apparatus with the intelligent temperature control forming function according to claim 7, wherein one end of the circulating liquid return pipe (4) far away from the polycondensation reaction tank (1) is connected with the top of the liquid storage temperature regulating tank (36), and one end of the heat conducting liquid input pipe (32) far away from the heat conducting liquid conveying pump (31) is connected with a position of the liquid storage temperature regulating tank (36) near the bottom.
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Application publication date: 20230516 |