CN116147388B - Heat exchange condensing device for methanol production with high heat transfer efficiency - Google Patents
Heat exchange condensing device for methanol production with high heat transfer efficiency Download PDFInfo
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- CN116147388B CN116147388B CN202211240165.7A CN202211240165A CN116147388B CN 116147388 B CN116147388 B CN 116147388B CN 202211240165 A CN202211240165 A CN 202211240165A CN 116147388 B CN116147388 B CN 116147388B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
- F28D11/04—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller performed by a tube or a bundle of tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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Abstract
The invention belongs to the technical field of methanol production, and is used for solving the problems that the prior art cannot test the heat exchange condensation effect of methanol, cannot perform retrospective analysis based on the test result to adaptively adjust the next heat exchange condensation process, has low intelligent degree and is difficult to replace a heat exchange condensation structure, in particular to a heat exchange condensation device for methanol production with high heat transfer efficiency, which comprises a heat exchange condensation box and a heat exchange analysis platform, wherein two sides in the heat exchange condensation box are rotatably provided with rotary conveying pipes, and a heat conduction exchange mechanism is arranged between the two groups of rotary conveying pipes through a manual mounting and dismounting mechanism; according to the invention, not only can the methanol be subjected to rapid heat exchange and condensation, but also the heat exchange and condensation operation of the methanol can be automatically and adaptively adjusted, so that the heat exchange and condensation effect of the methanol is ensured, and the heat transfer efficiency is improved.
Description
Technical Field
The invention relates to the technical field of methanol production, in particular to a heat exchange condensing device with high heat transfer efficiency for methanol production.
Background
The saturated monoalcohol with the simplest structure of methanol is colorless and volatile liquid with alcohol smell, is mainly used for preparing formaldehyde, pesticides and the like, and is used as an extractant of organic matters, a denaturant of alcohol and the like, and a condensing device for producing methanol is disclosed in China patent with the publication number of CN213021097U, wherein a two-stage condenser is used for cooling a methanol aqueous solution, after primary condensation is finished, the methanol aqueous solution is introduced into a condensing straight tube in a secondary condenser, and then further cooling is carried out, and the condensing device enables the methanol aqueous solution to be condensed and cooled before purification, so that the volatilization of methanol is effectively reduced, and the yield is improved;
According to the technical scheme, only the heat exchange condensation of the methanol can be realized in a specific working process, but the heat exchange condensation effect of the methanol cannot be checked, the following heat exchange condensation process cannot be adjusted adaptively by performing retrospective analysis based on the check result, the continuous heat exchange condensation effect of the methanol and the high-efficiency heat transfer of the methanol are difficult to ensure, the intelligent degree is low, and because the internal heat exchange condensation structure is fixed in a welding mode, when the internal heat exchange condensation structure is abnormal or damaged, the internal heat exchange condensation structure is difficult to replace, and the heat exchange condensation effect of the device is not guaranteed;
in view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
The invention aims to provide a heat exchange condensing device for methanol production, which has high heat transfer efficiency, and solves the problems that the prior art cannot test the heat exchange condensing effect of methanol, cannot perform retrospective analysis based on the test result to adaptively adjust the next heat exchange condensing process, cannot ensure the heat exchange condensing effect of methanol and high-efficiency heat transfer of methanol, has low intelligent degree, and cannot replace an internal heat exchange condensing structure, so that the heat exchange condensing effect of the device is not guaranteed.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the heat exchange condensing device for methanol production with high heat transfer efficiency comprises a heat exchange condensing box and a heat exchange analysis platform, wherein a water inlet main pipe is fixedly arranged at the bottom of the heat exchange condensing box, a water outlet main pipe is fixedly arranged at the top of the heat exchange condensing box, rotary conveying pipes are rotatably arranged at two sides of the interior of the heat exchange condensing box, and a heat conduction exchange mechanism is arranged between the two groups of rotary conveying pipes through a manual mounting and dismounting mechanism; two sides of the outside of the heat exchange condensing box are fixedly provided with transfer hollow seats, and one ends, far away from each other, of the two groups of rotary conveying pipes are inserted into the corresponding transfer hollow seats;
a driving seat is arranged on one side of the heat exchange condensing box, a sealed driving cavity is arranged in the driving seat, a sealed transmission cavity is arranged on one side of the heat exchange condensing box facing the driving seat, a methanol input main pipe communicated with the sealed driving cavity is arranged on one side of the driving seat far away from the heat exchange condensing box, a transfer hollow seat positioned on the same side with the driving seat is communicated with the sealed driving cavity through a methanol transfer pipe, and a methanol output main pipe is arranged on the transfer hollow seat on the other side;
the self-driving shaft is rotatably arranged in the driving seat, one end of the self-driving shaft extends into the sealed driving cavity and is connected with the rotating blade, the other end of the self-driving shaft extends into the sealed driving cavity and is in transmission connection with the corresponding rotating conveying pipe through the driving belt, the top of the heat exchange condensing box is fixedly provided with a standby condensing tank, the standby condensing tank is provided with a methanol conveying branch pipe, a cold water conveying branch pipe, a methanol output branch pipe and a cold water output branch pipe, one end of the water outlet main pipe, which is far away from the heat exchange condensing tank, is connected with the cold water conveying branch pipe through a three-way valve, and the methanol output main pipe is connected with the methanol conveying branch pipe through a two-way valve;
The heat exchange analysis platform is in communication connection with the methanol inspection module, the storage module, the fault tracing module and the feedback early warning module, the methanol inspection module performs inspection analysis on the methanol after heat exchange, judges whether the methanol inspection result in the previous analysis period is qualified or not, and sends a fault analysis signal to the fault tracing module through the heat exchange analysis platform when the methanol inspection result in the previous analysis period is judged to be unqualified; the fault tracing module traces and analyzes influence factors of the methanol heat exchange condensation after receiving the fault analysis signal, and sends an adjusting signal to the feedback early warning module through the heat exchange analysis platform, and the feedback early warning module adjusts and warns the methanol heat exchange condensation operation based on the adjusting signal.
Further, the process of the methanol inspection module for inspecting and analyzing the methanol after heat exchange comprises the following steps: dividing the previous analysis period into a plurality of analysis nodes, marking the number of the analysis nodes as G1, acquiring the methanol temperature output data of the analysis nodes, acquiring a methanol temperature output threshold value through a storage module, comparing the methanol temperature output data with the methanol temperature output threshold value, marking the number of the analysis nodes with the methanol temperature output data larger than the methanol temperature output threshold value as G2, and marking the ratio of G2 to G1 as a disqualification coefficient;
And summing the methanol temperature data of all the analysis nodes, taking an average value to obtain a methanol Wen Kuang coefficient of the previous analysis period, obtaining a failure threshold value and a methanol Wen Kuang threshold value through a storage module, comparing the failure coefficient and the methanol Wen Kuang coefficient with the failure threshold value and the methanol Wen Kuang threshold value respectively, and judging whether the methanol inspection result of the previous analysis period is qualified or not through the comparison result.
Further, the process of comparing the reject ratio and the methanol Wen Kuang ratio with the reject threshold and the methanol Wen Kuang threshold, respectively, includes: if the failure coefficient is smaller than the failure threshold and the methanol temperature Kuang Jishu is smaller than the methanol Wen Kuang threshold, judging that the methanol inspection result in the previous analysis period is qualified, otherwise, judging that the methanol inspection result in the previous analysis period is unqualified, and sending a fault analysis signal to a fault tracing module by the methanol inspection module through a heat exchange analysis platform.
Further, the process of tracing and analyzing the influence factors of the heat exchange condensation of the methanol after the fault tracing module receives the fault analysis signal comprises the following steps: acquiring methanol temperature data and methanol speed data of a previous analysis period, and carrying out numerical calculation on the methanol temperature data and the methanol speed data to obtain the deflection transmission coefficients of all analysis nodes of the previous analysis period;
Summing the bias transmission coefficients of all analysis nodes in the previous analysis period, taking an average value to obtain an internal table coefficient in the previous analysis period, establishing a bias transmission set of the bias transmission coefficients of all analysis nodes in the previous analysis period, performing variance calculation on the bias transmission set to obtain an internal stability coefficient, acquiring an internal table threshold and an internal stability threshold through a storage module, comparing the internal table coefficient and the internal stability coefficient with the internal table threshold and the internal stability threshold respectively, and judging whether methanol input adjustment is performed or not through a comparison result;
after the judgment result is that the methanol input adjustment is not carried out, cold water temperature entering data and cold water speed entering data of all analysis nodes in the previous analysis period are obtained, the cold water temperature entering data and the cold water speed entering data of all analysis nodes in the previous analysis period are respectively summed and averaged to obtain a cold water speed entering real value and a cold water speed entering real value, a cold water temperature entering threshold value and a cold water speed entering threshold value are obtained through a storage module, the cold water temperature entering Wen Shizhi and the cold water speed entering real value are respectively compared with the cold water temperature entering threshold value and the cold water speed entering threshold value, and maintenance early warning and water inlet adjustment are carried out through judgment of the comparison result.
Further, the process of comparing the internal table coefficient and the internal stability coefficient with the internal table threshold and the internal stability threshold respectively comprises the following steps: if the internal table coefficient is smaller than the internal table threshold and the internal stability coefficient is smaller than the internal stability threshold, judging that the methanol inspection result in the previous analysis period is unqualified and is irrelevant to the condition of the input methanol; otherwise, judging that the methanol inspection result in the previous analysis period is unqualified and related to the condition of the input methanol, and sending a methanol input deceleration signal to a feedback early warning module through a heat exchange analysis platform;
The process of comparing the real cold water inflow Wen Shizhi and cold water inflow speed with the cold water inflow temperature threshold and the cold water inflow speed threshold respectively comprises the following steps: if the cold water inlet Wen Shizhi is smaller than the cold water temperature threshold and the cold water inlet real value is larger than the cold water inlet threshold, judging that the methanol inspection result in the previous analysis period is unqualified and irrelevant to the water inlet condition, and sending a maintenance early warning signal to the feedback early warning module through the heat exchange analysis platform; otherwise, judging that the methanol inspection result in the previous analysis period is unqualified and related to the water inflow condition, and sending a water inflow accelerating and cooling signal to a feedback early warning module through a heat exchange analysis platform.
Further, after the methanol inspection module determines that the methanol inspection result in the previous analysis period is qualified, generating a utilization rate analysis signal and sending the utilization rate analysis signal to the cold energy utilization rate analysis module through the heat exchange analysis platform, wherein the process of the utilization rate analysis by the cold energy utilization rate analysis module comprises the following steps:
the methanol Wen Kuang coefficient and the methanol Wen Kuang threshold value of the previous analysis period are obtained, the difference value between the methanol Wen Kuang coefficient and the methanol Wen Kuang threshold value is marked as methanol Wen Pianzhi, the temperature deviation threshold value is obtained through the storage module, and the methanol Wen Pianzhi is compared with the temperature deviation threshold value; if the methanol Wen Pianzhi is smaller than or equal to Wen Pian threshold, the temperature bias is judged to be normal, and if the methanol Wen Pianzhi is larger than Wen Pian threshold, the temperature bias is judged to be abnormal;
When the temperature deviation is abnormal, summing the methanol speed data of all analysis nodes in the previous analysis period, taking an average value to obtain a real methanol speed value in the previous analysis period, obtaining a methanol speed upper limit value and an alcohol speed adjustable threshold value through a storage module, marking the difference value between the methanol speed threshold value and the methanol speed upper limit value as an alcohol speed adjustable value, and comparing the alcohol speed adjustable value with the alcohol speed adjustable threshold value;
if the alcohol speed adjustable value is greater than or equal to the alcohol speed adjustable threshold value, generating a judging signal P1, if the alcohol speed adjustable value is smaller than the alcohol speed adjustable threshold value, generating a judging signal P2, and transmitting the judging signal P1 or the judging signal P2 to a feedback early warning module through a heat exchange analysis platform; the feedback early-warning module receives the judging signal P1 and then sends out a control instruction to improve the methanol inflow speed, and the feedback early-warning module receives the judging signal P2 and then sends out a control instruction to slow down the cold water inflow speed.
Further, the heat conduction exchange mechanism comprises methanol aggregation boxes positioned at two sides of the interior of the heat exchange condensing box, a plurality of groups of heat conduction pipes are arranged on the opposite surfaces of the two groups of methanol aggregation boxes, a rectangular mounting seat is fixedly arranged on the surface, away from each other, of the two groups of methanol aggregation boxes, and a limit sealing groove is formed in the rectangular mounting seat;
The rectangular hollow pipe inserted into the limiting seal groove is arranged on one side of the rectangular mounting seat, which is opposite to the methanol gathering box, and is fixed and communicated with the corresponding rotary conveying pipe through the manual mounting and dismounting mechanism, the rectangular sealing ring positioned in the limiting seal groove is fixedly arranged on the outer peripheral surface of the rectangular hollow pipe, and the rectangular sealing ring is fixedly connected with the corresponding methanol gathering box through a connecting spring.
Further, the manual installing and detaching mechanism is provided with a plurality of groups on two sides of the heat conduction exchange mechanism, the manual installing and detaching mechanism comprises a fixed block fixedly arranged at one end of the rectangular hollow pipe and a vertical positioning rod penetrating through the fixed block, a positioning groove is formed in the outer peripheral surface of the rotary conveying pipe, one end of the rotary conveying pipe is inserted into the corresponding rectangular hollow pipe, the bottom end of the vertical positioning rod is inserted into the corresponding positioning groove, a first annular block is fixedly arranged on the outer peripheral surface of the vertical positioning rod, and the first annular block is positioned below the fixed block and connected with the fixed block through a reset spring;
the top of vertical locating lever is fixed to be set up the guide sleeve, install the horizontal locking lever that runs through its inside on the guide sleeve, the locking groove has been seted up to the one end of rectangle hollow tube, in the corresponding locking groove was inserted to the one end of horizontal locking lever, the other end of horizontal locking lever is fixed to be set up and is drawn the piece, the outer peripheral face of horizontal locking lever is fixed to be set up the second annular piece, and the second annular piece passes through compression spring with the guide sleeve and link to each other.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, cold water is continuously input through the water inlet main pipe, cold water in the heat exchange condensing box is continuously output through the water outlet main pipe, methanol is conveyed to the heat conduction exchange mechanism under the action of the methanol input main pipe, the methanol transfer pipe and the transfer hollow seat, the heat conduction exchange mechanism conveys the methanol and rapidly transfers heat in the methanol to the cold water in the heat exchange condensing box, and the methanol is rapidly subjected to heat exchange condensation, so that continuous heat exchange condensation of the methanol is realized, and the methanol production efficiency is improved;
2. according to the invention, the input methanol is used for impacting the rotating blades to drive the self-driving shaft to rotate, the self-driving shaft drives the corresponding rotary conveying pipe to rotate through the driving belt, and the heat conduction exchange mechanism rotates in the heat exchange condensing box along with the rotation of the self-driving shaft, so that the internal cold water can be stirred, and each group of heat conduction exchange pipes can be used for rapidly and fully conducting heat from the internal methanol, so that the heat exchange condensing effect and the heat transfer efficiency of the methanol are improved;
3. according to the invention, the methanol after heat exchange is subjected to inspection analysis by the methanol inspection module, whether the methanol inspection result in the previous analysis period is qualified or not is judged, when the methanol inspection result is unqualified, the influence factors of the methanol heat exchange condensation are subjected to retrospective analysis by the fault retrospective module, a corresponding analysis signal is sent to the feedback early warning module after retrospective analysis, the feedback early warning module sends a control instruction to properly reduce the input speed of the methanol after receiving the methanol deceleration signal, and sends a control instruction to properly increase the input speed of cold water and reduce the temperature of the input cold water after receiving the water inlet acceleration and cooling signal, so that the automatic adaptability adjustment of the methanol heat exchange condensation operation is realized, the intelligent degree is high, and the heat exchange condensation effect of the methanol is guaranteed;
After receiving the maintenance early warning signal, the feedback early warning module sends maintenance early warning information to terminal equipment of operators so as to remind the operators to replace or maintain the internal heat conduction exchange mechanism, and sends a control instruction so as to exchange heat and condense the methanol again through the standby condensing tank, so that the problem that the methanol cannot be fully condensed and heat exchanged due to the heat conduction exchange mechanism is solved, and the heat exchange and condensation effects of the methanol are guaranteed;
4. in the invention, when the test result of the methanol output in the last analysis period is qualified, the utilization rate analysis module is used for carrying out utilization rate analysis, and an analysis judgment signal is sent to the feedback early warning module, and when the feedback early warning module is used for properly improving the methanol input speed or slowing down the cold water input speed based on the analysis judgment signal, the production efficiency of the methanol can be improved, or the residence time of the cold water in the heat exchange condensing tank can be properly prolonged, the input quantity of the cold water is reduced, the utilization rate of the cold water is improved, and the energy consumption is reduced;
5. according to the invention, the heat conduction exchange mechanism is matched with the manual mounting and dismounting mechanism, so that when the heat conduction exchange mechanism is abnormal or damaged to cause poor heat exchange and condensation effects and low heat transfer efficiency on methanol, the heat conduction exchange mechanism is convenient to dismount, the operation is simple, the replacement and maintenance of the heat conduction exchange mechanism are facilitated, and the subsequent heat exchange and condensation effects and heat transfer efficiency on methanol are ensured.
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 an overall system block diagram of the present invention;
FIG. 3 is a front view of a spare condensing tank in the present invention;
FIG. 4 is a system block diagram of a second embodiment of the present invention;
FIG. 5 is a schematic diagram of the structure of the driving seat and the heat exchange condensing box in the invention;
FIG. 6 is an enlarged view of portion A of FIG. 1;
fig. 7 is a schematic structural view of a manual assembly and disassembly mechanism in the invention.
Reference numerals: 1. a heat exchange condensing box; 2. a water inlet main pipe; 3. a water outlet main pipe; 4. a standby condensing tank; 5. a heat conduction exchange mechanism; 6. a driving seat; 61. sealing the driving cavity; 7. a manual mounting and dismounting mechanism; 8. rotating the conveying pipe; 9. a hollow transfer seat; 10. a methanol transfer pipe; 11. a methanol output header; 12. methanol input header pipe; 13. a methanol delivery manifold; 14. a cold water delivery branch pipe; 15. a methanol output branch pipe; 16. a cold water output branch pipe; 17. a self-driving shaft; 18. rotating the blades; 19. a transmission belt; 20. sealing the transmission cavity; 51. a heat-conducting tube; 52. a methanol aggregation box; 53. a rectangular mounting base; 54. a rectangular hollow tube; 55. a rectangular sealing ring; 56. a connecting spring; 71. a fixed block; 72. a vertical positioning rod; 73. a positioning groove; 74. a return spring; 75. a first annular block; 76. a guide sleeve; 77. pulling blocks; 78. a compression spring; 79. a transverse locking bar; 710. a second annular block; 711. locking grooves.
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. 1-3, the heat exchange condensing device for methanol production with high heat transfer efficiency comprises a heat exchange condensing box 1 and a heat exchange analysis platform, wherein a water inlet main pipe 2 is fixedly arranged at the bottom of the heat exchange condensing box 1, a water outlet main pipe 3 is fixedly arranged at the top of the heat exchange condensing box 1, rotary conveying pipes 8 are rotatably arranged at two sides of the interior of the heat exchange condensing box 1, and a heat conduction exchange mechanism 5 is arranged between the two groups of rotary conveying pipes 8; the two sides of the outside of the heat exchange condensing box 1 are fixedly provided with transfer hollow seats 9, and one ends of the two groups of rotary conveying pipes 8, which are far away from each other, are inserted into the corresponding transfer hollow seats 9; a driving seat 6 is arranged on one side of the heat exchange condensing box 1, a sealed driving cavity 61 is arranged in the driving seat 6, a methanol input main pipe 12 communicated with the sealed driving cavity 61 is arranged on one side of the driving seat 6 far away from the heat exchange condensing box 1, cold water is continuously input into the heat exchange condensing box 1 by a water inlet main pipe 2, a transfer hollow seat 9 positioned on the same side with the driving seat 6 is communicated with the sealed driving cavity 61 through a methanol transfer pipe 10, and a methanol output main pipe 11 is arranged on the transfer hollow seat 9 on the other side; the cold water in the heat exchange condensing box 1 is continuously output by the water outlet header pipe 3, and the heat exchange condensing box 1 is always filled with cold water;
The top of the heat exchange condensing tank 1 is fixedly provided with a standby condensing tank 4, the standby condensing tank 4 is a common condensing tank, the structure and the shape of the standby condensing tank 4 are the prior art, the redundant description is omitted again, the standby condensing tank 4 is provided with a methanol conveying branch pipe 13, a cold water conveying branch pipe 14, a methanol conveying branch pipe 15 and a cold water conveying branch pipe 16, one end of a water outlet main pipe 3, which is far away from the heat exchange condensing tank 1, is connected with the cold water conveying branch pipe 14 through a three-way valve, the output of cold water is controlled through a three-way valve I, a methanol conveying main pipe 11 is connected with the methanol conveying branch pipe 13 through a three-way valve II, and the output of methanol after heat exchange condensation is controlled through the three-way valve II; the standby condensing tank 4 is started when the heat conduction exchanging mechanism 5 is aged or abnormal to cause poor heat transfer effect, so as to perform secondary heat exchange condensation on the methanol, and the problem that the methanol cannot be fully condensed and heat exchanged due to the heat conduction exchanging mechanism 5 is solved;
the heat exchange analysis platform is in communication connection with the methanol inspection module, the storage module, the fault tracing module and the feedback early warning module, the methanol inspection module performs inspection analysis on the methanol after heat exchange, judges whether the methanol inspection result in the previous analysis period is qualified or not, and sends a fault analysis signal to the fault tracing module through the heat exchange analysis platform when the methanol inspection result in the previous analysis period is judged to be unqualified; the process of inspection and analysis includes:
S1, dividing the previous analysis period into a plurality of analysis nodes, marking the number of the analysis nodes as G1, acquiring the methanol temperature output data of the analysis nodes, acquiring a methanol temperature output threshold value through a storage module, and comparing the methanol temperature output data with the methanol temperature output threshold value;
s2, marking the number of analysis nodes with the methanol temperature data larger than a methanol temperature threshold as G2, and marking the ratio of G2 to G1 as a failure coefficient; the methanol temperature data represents the temperature of the methanol after heat exchange and condensation, and the methanol temperature data is detected by a temperature sensor arranged in the methanol output header pipe 11;
s3, summing the methanol temperature data of all analysis nodes, taking an average value to obtain a methanol Wen Kuang coefficient of the previous analysis period, obtaining a failure threshold value and a methanol Wen Kuang threshold value through a storage module, comparing the failure coefficient and the methanol Wen Kuang coefficient with the failure threshold value and the methanol Wen Kuang threshold value respectively, and judging whether a methanol inspection result of the previous analysis period is qualified or not through a comparison result;
it should be noted that, the smaller the value of the reject ratio is, the better the heat exchange condensation effect of the methanol in the previous analysis period is, and the larger the value of the reject ratio is, the more excessive methanol in the previous analysis period cannot be sufficiently subjected to heat exchange condensation, and the heat exchange condensation effect in the previous analysis period is poor; the coefficient of the methanol Wen Kuang reflects the overall average temperature of the methanol output in the last analysis period and plays an auxiliary role in reflecting the heat exchange and condensation effects of the methanol in the last analysis period;
S4, if the failure coefficient is smaller than the failure threshold value and the methanol temperature Kuang Jishu is smaller than the methanol Wen Kuang threshold value, judging that the methanol inspection result in the previous analysis period is qualified, otherwise, judging that the methanol inspection result in the previous analysis period is unqualified, and sending a fault analysis signal to a fault tracing module by the methanol inspection module through a heat exchange analysis platform;
the fault tracing module traces and analyzes influence factors of the methanol heat exchange condensation after receiving the fault analysis signal, and sends an adjusting signal to the feedback early warning module through the heat exchange analysis platform, and the feedback early warning module adjusts and early warns the methanol heat exchange condensation operation based on the adjusting signal; the process of retrospective analysis includes:
t1, acquiring methanol temperature data and methanol speed data of the previous analysis period, and marking the methanol temperature data and the methanol speed data as JJW and JJS, wherein the methanol temperature data represents the temperature of the methanol before heat exchange condensation, the methanol speed data represents the input flow rate of the methanol when the methanol enters the heat exchange condensation box 1, and the methanol temperature data and the methanol speed data are detected by a temperature sensor and a flow rate sensor which are arranged on a methanol input main pipe 12;
T2, performing numerical calculation on the methanol temperature-entering data JJW and the methanol speed-entering data JJS through a formula sp=a1×jjw+a2×jjs to obtain the offset coefficients of all analysis nodes in the previous analysis period; wherein a1 and a2 are preset proportionality coefficients, a1 and a2 are positive numbers, and a1 is more than a2; preferably, a1= 2.638, a2= 3.243; the formulas are all formulas obtained by collecting a large amount of data for software simulation and selecting a formula close to a true value, and coefficients in the formulas are set by a person skilled in the art according to actual conditions; the size of the coefficient is a specific numerical value obtained by quantizing each parameter, so that the subsequent comparison is convenient, and the size of the coefficient is only required to be not influenced by the proportional relation between the parameter and the quantized numerical value, for example, the bias transmission coefficient is in direct proportion to the numerical value of the methanol temperature data;
t3, summing the bias transmission coefficients of all analysis nodes in the previous analysis period, averaging to obtain an internal table coefficient in the previous analysis period, establishing a bias transmission set of the bias transmission coefficients of all analysis nodes in the previous analysis period, performing variance calculation on the bias transmission set to obtain an internal stability coefficient, acquiring an internal table threshold and an internal stability threshold through a storage module, and comparing the internal table coefficient and the internal stability coefficient with the internal table threshold and the internal stability threshold respectively;
The internal stability coefficient represents the average value of the condition of the methanol input process in the previous analysis period, and the internal stability coefficient represents the deviation value of the condition of the methanol input process in the previous analysis period; it should be noted that, the larger the numerical value of the internal table coefficient is, the larger the difficulty of quick heat exchange condensation of the methanol is, and the larger the numerical value of the internal stability coefficient is, the larger the fluctuation of the input condition of the methanol is;
t4, if the internal table coefficient is smaller than the internal table threshold value and the internal stability coefficient is smaller than the internal stability threshold value, judging that the methanol inspection result in the previous analysis period is unqualified and is irrelevant to the condition of the input methanol, namely, the methanol input adjustment is not needed; otherwise, judging that the methanol inspection result in the previous analysis period is unqualified and related to the condition of the input methanol, and sending a methanol input deceleration signal to a feedback early warning module through a heat exchange analysis platform;
after the judgment result shows that the methanol input adjustment is not performed, cold water temperature entering data and cold water speed entering data of all analysis nodes in the previous analysis period are obtained, wherein the cold water temperature entering data represent the temperature of cold water input by the water inlet header pipe 2, the cold water speed entering data represent the input flow speed when the cold water enters the heat exchange condensing box 1, and the cold water temperature entering data and the cold water speed entering data are detected by a temperature sensor and a flow speed sensor which are arranged on the water inlet header pipe 2;
The cold water temperature data and the cold water speed data of all analysis nodes in the previous analysis period are summed and averaged to obtain a cold water speed real value and a cold water speed real value respectively, a cold water temperature threshold and a cold water speed threshold are obtained through a storage module, and the cold water temperature threshold and the cold water speed real value are compared with the cold water temperature threshold and the cold water speed threshold respectively;
t6, if the cold water inlet Wen Shizhi is smaller than the cold water temperature inlet threshold and the cold water inlet real-speed value is larger than the cold water inlet threshold, judging that the methanol inspection result in the last analysis period is unqualified and irrelevant to the water inlet condition, and sending a maintenance early warning signal to the feedback early warning module through the heat exchange analysis platform; otherwise, judging that the methanol inspection result in the previous analysis period is unqualified and related to the water inflow condition, and sending a water inflow accelerating and cooling signal to a feedback early warning module through a heat exchange analysis platform.
Embodiment two:
as shown in fig. 4, the difference between the present embodiment and embodiment 1 is that the apparatus further includes a cold energy utilization rate analysis module, the cold energy utilization rate analysis module is in communication connection with the heat exchange analysis platform, and after the methanol inspection module determines that the methanol inspection result in the previous analysis period is qualified, the apparatus generates a utilization rate analysis signal and sends the utilization rate analysis signal to the cold energy utilization rate analysis module through the heat exchange analysis platform, and the process of performing the utilization rate analysis by the cold energy utilization rate analysis module includes:
Q1, acquiring a methanol Wen Kuang coefficient and a methanol Wen Kuang threshold value in the previous analysis period, marking a difference value between the methanol Wen Kuang coefficient and the methanol Wen Kuang threshold value as methanol Wen Pianzhi, acquiring a temperature deviation threshold value through a storage module, and comparing the methanol Wen Pianzhi with the temperature deviation threshold value;
q2, if the methanol Wen Pianzhi is less than or equal to Wen Pian threshold, that is, the output average temperature of the methanol in the previous analysis period is not different from the required output temperature, and the phenomenon that the energy consumption is increased due to excessive condensation of the methanol is avoided, the temperature deviation is judged to be normal; if the methanol Wen Pianzhi is larger than the Wen Pian threshold, the difference of the output average temperature of the methanol in the previous analysis period is larger than the required output temperature, so that excessive condensation of the methanol is caused, the energy consumption generated in the heat exchange condensation process is increased, and the temperature deviation is judged to be abnormal;
q3, when the temperature deviation is abnormal, summing the methanol advance data of all analysis nodes in the previous analysis period, taking an average value to obtain a real methanol advance value in the previous analysis period, obtaining a methanol advance upper limit value and an alcohol speed adjustable threshold value through a storage module, marking the difference value between the methanol advance threshold value and the methanol advance upper limit value as an alcohol speed adjustable value, and comparing the alcohol speed adjustable value with the alcohol speed adjustable threshold value;
Q4, if the alcohol speed adjustable value is larger than or equal to an alcohol speed adjustable threshold value, which indicates that a larger adjusting space exists for the methanol input speed relative to the methanol input upper limit value, and the methanol input speed can be further improved appropriately, generating a judging signal P1, if the alcohol speed adjustable value is smaller than the alcohol speed adjustable threshold value, which indicates that the adjusting space for the methanol input speed relative to the methanol input upper limit value is smaller, at the moment, the methanol input speed is difficult to be improved continuously, generating a judging signal P2, and transmitting the judging signal P1 or the judging signal P2 to a feedback early warning module through a heat exchange analysis platform;
when the feedback early-warning module receives the judging signal P1, a control instruction is sent out to properly improve the methanol inflow speed, so that the production efficiency of the methanol can be improved, and when the feedback early-warning module receives the judging signal P2, a control instruction is sent out to slow down the cold water inflow speed, so that the residence time of the cold water in the heat exchange condensing tank 1 is properly prolonged, the input quantity of the cold water is reduced, the utilization rate of the cold quantity of the cold water is improved, and the energy consumption is reduced.
Embodiment III:
as shown in fig. 1 and 5, the difference between this embodiment and embodiments 1 and 2 is that a sealed transmission cavity 20 is formed on the side of the heat exchange condensing box 1 facing the driving seat 6, a self-driving shaft 17 is rotatably mounted on the driving seat 6, the self-driving shaft 17 is disposed along the X direction, one end of the self-driving shaft 17 extends into the sealed driving cavity 61, a rotary vane 18 is fixedly disposed on the outer peripheral surface of one end of the self-driving shaft 17 located in the sealed driving cavity 61, the other end of the self-driving shaft 17 extends into the sealed transmission cavity 20, a corresponding rotary conveying pipe 8 penetrates through the sealed transmission cavity 20, and the self-driving shaft 17 is in transmission connection with the corresponding rotary conveying pipe 8 through a transmission belt 19;
In the working process, methanol enters the sealed driving cavity 61 in the driving seat 6 through the methanol input main pipe 12, the rotating blades 18 in the sealed driving cavity 61 are impacted to drive the self-driving shaft 17 to rotate, the self-driving shaft 17 drives the corresponding rotary conveying pipe 8 to rotate through the driving belt 19, and accordingly the heat conduction exchange mechanism 5 is finally driven to rotate in the heat exchange condensing box 1, internal cold water can be stirred, so that each group of heat conduction exchange pipes 51 conduct heat of the internal methanol quickly and fully, and the heat exchange condensing effect and heat transfer efficiency of the methanol are improved.
Embodiment four:
as shown in fig. 1 and fig. 6-7, the difference between this embodiment and embodiment 1, embodiment 2 and embodiment 3 is that the heat-conducting exchange mechanism 5 includes a methanol collecting box 52 located at two sides of the interior of the heat-exchanging condensation box 1, a rotary conveying pipe 8 located at the input side conveys methanol into the methanol collecting box 52 at the input side, a plurality of groups of heat-conducting pipes 51 are installed at the opposite sides of the two groups of methanol collecting boxes 52, methanol uniformly enters into each group of heat-conducting pipes 51, the heat-conducting pipes 51 conduct the heat in the interior into the cold water in the heat-exchanging condensation box 1 to realize rapid heat transfer, a rectangular installation seat 53 is fixedly arranged at the side of the two groups of methanol collecting boxes 52 far away from each other, and a limit sealing groove is formed in the rectangular installation seat 53;
A rectangular hollow pipe 54 inserted into the limit sealing groove is arranged on one side of the rectangular mounting seat 53, which is opposite to the methanol gathering box 52, the rectangular hollow pipe 54 is fixed and communicated with the corresponding rotary conveying pipe 8 through a manual mounting and dismounting mechanism 7, a rectangular sealing ring 55 positioned in the limit sealing groove is fixedly arranged on the outer peripheral surface of the rectangular hollow pipe 54, the inner shape of the limit sealing groove is matched with the rectangular sealing ring 55, the rectangular hollow pipe 54 and the rectangular mounting seat 53 can be prevented from relatively rotating, the limit sealing groove is effectively sealed, and the rectangular sealing ring 55 is fixedly connected with the corresponding methanol gathering box 52 through a connecting spring 56;
the manual installing and detaching mechanism 7 is provided with a plurality of groups on two sides of the heat conduction exchange mechanism 5, the manual installing and detaching mechanism 7 comprises a fixed block 71, the fixed block 71 is arranged at one end of the rectangular hollow tube 54, a vertical positioning rod 72 penetrating through the fixed block 71 is arranged on the fixed block 71, a positioning groove 73 is formed in the outer peripheral surface of the rotary conveying tube 8, one end of the rotary conveying tube 8 is inserted into the corresponding rectangular hollow tube 54, and preferably, an annular sealing block is arranged on the outer peripheral surface of one end of the rotary conveying tube 8, which is positioned in the rectangular hollow tube 54, so as to seal the communication position of the two parts; the bottom end of the vertical positioning rod 72 is inserted into the corresponding positioning groove 73, a first annular block 75 is fixedly arranged on the peripheral surface of the vertical positioning rod 72, and the first annular block 75 is positioned below the fixed block 71 and connected with the fixed block through a return spring 74; the top end of the vertical positioning rod 72 is fixedly provided with a guide sleeve 76, the guide sleeve 76 is provided with a transverse locking rod 79 penetrating through the inside of the guide sleeve, one end of the rectangular hollow tube 54 is provided with a locking groove 711, one end of the transverse locking rod 79 is inserted into the corresponding locking groove 711, the other end of the transverse locking rod 79 is fixedly provided with a pull block 77, the outer peripheral surface of the transverse locking rod 79 is fixedly provided with a second annular block 710, and the second annular block 710 is connected with the guide sleeve 76 through a compression spring 78;
In the working process, when the heat exchange mechanism 5 is abnormal or damaged, the heat exchange condensation effect on methanol is poor, the heat transfer efficiency is low, and at the moment, the heat exchange mechanism 5 needs to be replaced or detached for maintenance, and when the heat exchange mechanism is detached, an operator pulls the pull block 77 on the manual installing and detaching mechanism 7, so that the transverse locking rod 79 is pulled out of the corresponding locking groove 711, the locking groove 711 does not lock the position of the transverse locking rod 79 any more, the return spring 74 pulls the first annular block 75 to move upwards, and the vertical positioning rod 72 is pulled out of the corresponding positioning groove 73; through the mode, each group of manual installing and detaching mechanisms 7 are sequentially operated, and finally an operator pushes rectangular hollow pipes 54 on two sides so that rectangular sealing rings 55 move towards corresponding methanol gathering boxes 52, and rotary conveying pipes 8 are pulled out of rectangular mounting seats 53, so that the heat-conducting exchange mechanism 5 is detached, the operation is simple, the use is convenient, the heat-conducting exchange mechanism 5 is replaced and maintained, and the subsequent heat exchange condensing effect and heat transfer efficiency of methanol are guaranteed.
The working process and principle of the invention are as follows:
when the heat exchange device is used, cold water is continuously input into the heat exchange condensing box 1 through the water inlet main pipe 2, the cold water in the heat exchange condensing box 1 is continuously output through the water outlet main pipe 3, so that the heat exchange condensing box 1 is always filled with the cold water, methanol is input into the sealed driving cavity 61 in the driving seat 6 through the methanol input main pipe 12, and enters the corresponding transfer hollow seat 9 through the methanol transfer pipe 10, the heat exchange mechanism 5 is used for conveying the methanol and rapidly transferring heat in the methanol to the cold water in the heat exchange condensing box 1, rapid heat exchange condensation of the methanol is realized, and the methanol subjected to heat exchange condensation is gathered in the transfer hollow seat 9 at the other side and is output through the methanol output main pipe 11, so that continuous heat exchange condensation of the methanol is realized, and the improvement of the methanol production efficiency is facilitated;
The methanol inspection module performs inspection analysis on the methanol after heat exchange and judges whether the methanol inspection result in the previous analysis period is qualified or not, when the methanol inspection result in the previous analysis period is judged to be unqualified, the methanol inspection module sends a fault analysis signal to the fault tracing module through the heat exchange analysis platform, the fault tracing module carries out tracing analysis on the influence factors of heat exchange and condensation of the methanol after receiving the fault analysis signal, and judges whether the unqualified methanol inspection result in the previous analysis period is related to the condition of the input methanol, and if the unqualified methanol inspection result in the previous analysis period is related to the condition of the input methanol, the methanol input speed reduction signal is sent to the feedback early warning module through the heat exchange analysis platform;
if the methanol is not related to the condition of the input methanol, continuously judging whether the unqualified methanol inspection result in the previous analysis period is related to the condition of the input methanol, after judging that the methanol is not related to the water inlet condition, sending a maintenance early warning signal to a feedback early warning module through a heat exchange analysis platform, and after judging that the methanol is related to the water inlet condition, sending a water inlet speed-up and temperature-down signal to the feedback early warning module through the heat exchange analysis platform; the feedback early warning module sends out a control instruction to properly reduce the input speed of the methanol after receiving the methanol deceleration signal, and sends out a control instruction to properly increase the input speed of cold water and reduce the temperature of the input cold water after receiving the water inlet acceleration and temperature reduction signal;
After receiving the maintenance early warning signal, the feedback early warning module judges that the heat conduction exchange mechanism 5 is aged or abnormal to cause poor heat transfer effect, and sends maintenance early warning information to terminal equipment of operators so as to remind the operators to replace or maintain the internal heat conduction exchange mechanism 5, cold water in the water outlet manifold 3 enters the standby condensing tank 4 through the cold water conveying branch pipe 14, methanol in the methanol output manifold 11 enters the standby condensing tank 4 through the methanol conveying branch pipe 13, and the methanol performs heat exchange condensation again in the standby condensing tank 4 to solve the problem that the methanol cannot be fully condensed and heat exchanged due to the heat conduction exchange mechanism 5, so that the heat exchange condensing effect of the methanol is ensured.
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 heat exchange condensing device for methanol production with high heat transfer efficiency comprises a heat exchange condensing box (1) and a heat exchange analysis platform, wherein a water inlet main pipe (2) is fixedly arranged at the bottom of the heat exchange condensing box (1), a water outlet main pipe (3) is fixedly arranged at the top of the heat exchange condensing box (1), and the heat exchange condensing device is characterized in that rotary conveying pipes (8) are rotatably arranged at two sides of the inside of the heat exchange condensing box (1), and a heat conduction exchange mechanism (5) is arranged between the two groups of rotary conveying pipes (8) through a manual mounting and dismounting mechanism (7); two sides of the outside of the heat exchange condensing box (1) are fixedly provided with transfer hollow seats (9), and one ends, far away from each other, of the two groups of rotary conveying pipes (8) are inserted into the corresponding transfer hollow seats (9);
a driving seat (6) is arranged on one side of the heat exchange condensing box (1), a sealed driving cavity (61) is formed in the driving seat (6), a sealed transmission cavity (20) is formed on one side, facing the driving seat (6), of the heat exchange condensing box (1), a methanol input main pipe (12) communicated with the sealed driving cavity (61) is arranged on one side, far away from the heat exchange condensing box (1), of the driving seat (6), a methanol transfer pipe (10) is communicated between a transfer hollow seat (9) positioned on the same side with the driving seat (6) and the sealed driving cavity (61), and a methanol output main pipe (11) is arranged on the transfer hollow seat (9) on the other side;
The automatic heat exchange device is characterized in that a self-driving shaft (17) is rotatably installed on the driving seat (6), one end of the self-driving shaft (17) extends into the sealed driving cavity (61) and is connected with the rotating blade (18), the other end of the self-driving shaft (17) extends into the sealed driving cavity (20) and is in transmission connection with the corresponding rotating conveying pipe (8) through the driving belt (19), a standby condensing tank (4) is fixedly arranged at the top of the heat exchange condensing tank (1), a methanol conveying branch pipe (13), a cold water conveying branch pipe (14), a methanol output branch pipe (15) and a cold water output branch pipe (16) are installed on the standby condensing tank (4), one end, far away from the heat exchange condensing tank (1), of the water outlet header pipe (3) is connected with the cold water conveying branch pipe (14) through a three-way valve, and the methanol output header pipe (11) is connected with the methanol conveying branch pipe (13) through a three-way valve II;
the heat exchange analysis platform is in communication connection with the methanol inspection module, the storage module, the fault tracing module and the feedback early warning module, the methanol inspection module performs inspection analysis on the methanol after heat exchange, judges whether the methanol inspection result in the previous analysis period is qualified or not, and sends a fault analysis signal to the fault tracing module through the heat exchange analysis platform when the methanol inspection result in the previous analysis period is judged to be unqualified; the fault tracing module traces and analyzes influence factors of the methanol heat exchange condensation after receiving the fault analysis signal, and sends an adjusting signal to the feedback early warning module through the heat exchange analysis platform, and the feedback early warning module adjusts and warns the methanol heat exchange condensation operation based on the adjusting signal.
2. The heat exchange condensing device for methanol production with high heat transfer efficiency according to claim 1, wherein the process of performing an inspection analysis on the methanol after heat exchange by the methanol inspection module comprises: dividing the previous analysis period into a plurality of analysis nodes, marking the number of the analysis nodes as G1, acquiring the methanol temperature output data of the analysis nodes, acquiring a methanol temperature output threshold value through a storage module, comparing the methanol temperature output data with the methanol temperature output threshold value, marking the number of the analysis nodes with the methanol temperature output data larger than the methanol temperature output threshold value as G2, and marking the ratio of G2 to G1 as a disqualification coefficient;
and summing the methanol temperature data of all the analysis nodes, taking an average value to obtain a methanol Wen Kuang coefficient of the previous analysis period, obtaining a failure threshold value and a methanol Wen Kuang threshold value through a storage module, comparing the failure coefficient and the methanol Wen Kuang coefficient with the failure threshold value and the methanol Wen Kuang threshold value respectively, and judging whether the methanol inspection result of the previous analysis period is qualified or not through the comparison result.
3. The heat exchange condenser for methanol production with high heat transfer efficiency according to claim 2, wherein the comparison of the reject ratio and the methanol Wen Kuang ratio with the reject threshold and the methanol Wen Kuang threshold, respectively, comprises: if the failure coefficient is smaller than the failure threshold and the methanol temperature Kuang Jishu is smaller than the methanol Wen Kuang threshold, judging that the methanol inspection result in the previous analysis period is qualified, otherwise, judging that the methanol inspection result in the previous analysis period is unqualified, and sending a fault analysis signal to a fault tracing module by the methanol inspection module through a heat exchange analysis platform.
4. The heat exchange condensing device for methanol production with high heat transfer efficiency according to claim 3, wherein the process of performing the retrospective analysis on the influence factors of the heat exchange condensation of the methanol after receiving the fault analysis signal by the fault retrospective module comprises: acquiring methanol temperature data and methanol speed data of a previous analysis period, and carrying out numerical calculation on the methanol temperature data and the methanol speed data to obtain the deflection transmission coefficients of all analysis nodes of the previous analysis period;
summing the bias transmission coefficients of all analysis nodes in the previous analysis period, taking an average value to obtain an internal table coefficient in the previous analysis period, establishing a bias transmission set of the bias transmission coefficients of all analysis nodes in the previous analysis period, performing variance calculation on the bias transmission set to obtain an internal stability coefficient, acquiring an internal table threshold and an internal stability threshold through a storage module, comparing the internal table coefficient and the internal stability coefficient with the internal table threshold and the internal stability threshold respectively, and judging whether methanol input adjustment is performed or not through a comparison result;
after the judgment result is that the methanol input adjustment is not carried out, cold water temperature entering data and cold water speed entering data of all analysis nodes in the previous analysis period are obtained, the cold water temperature entering data and the cold water speed entering data of all analysis nodes in the previous analysis period are respectively summed and averaged to obtain a cold water speed entering real value and a cold water speed entering real value, a cold water temperature entering threshold value and a cold water speed entering threshold value are obtained through a storage module, the cold water temperature entering Wen Shizhi and the cold water speed entering real value are respectively compared with the cold water temperature entering threshold value and the cold water speed entering threshold value, and maintenance early warning and water inlet adjustment are carried out through judgment of the comparison result.
5. The heat exchange condensing device for methanol production with high heat transfer efficiency as set forth in claim 4, wherein the process of comparing the internal surface coefficient and the internal stability coefficient with the internal surface threshold and the internal stability threshold, respectively, comprises: if the internal table coefficient is smaller than the internal table threshold and the internal stability coefficient is smaller than the internal stability threshold, judging that the methanol inspection result in the previous analysis period is unqualified and is irrelevant to the condition of the input methanol; otherwise, judging that the methanol inspection result in the previous analysis period is unqualified and related to the condition of the input methanol, and sending a methanol input deceleration signal to a feedback early warning module through a heat exchange analysis platform;
the process of comparing the real cold water inflow Wen Shizhi and cold water inflow speed with the cold water inflow temperature threshold and the cold water inflow speed threshold respectively comprises the following steps: if the cold water inlet Wen Shizhi is smaller than the cold water temperature threshold and the cold water inlet real value is larger than the cold water inlet threshold, judging that the methanol inspection result in the previous analysis period is unqualified and irrelevant to the water inlet condition, and sending a maintenance early warning signal to the feedback early warning module through the heat exchange analysis platform; otherwise, judging that the methanol inspection result in the previous analysis period is unqualified and related to the water inflow condition, and sending a water inflow accelerating and cooling signal to a feedback early warning module through a heat exchange analysis platform.
6. The heat exchange condensing device for methanol production with high heat transfer efficiency according to claim 2, wherein after the methanol inspection module determines that the methanol inspection result of the previous analysis period is qualified, generating a utilization analysis signal and transmitting the utilization analysis signal to the cold utilization analysis module through the heat exchange analysis platform, the process of the cold utilization analysis module performing the utilization analysis comprises:
the methanol Wen Kuang coefficient and the methanol Wen Kuang threshold value of the previous analysis period are obtained, the difference value between the methanol Wen Kuang coefficient and the methanol Wen Kuang threshold value is marked as methanol Wen Pianzhi, the temperature deviation threshold value is obtained through the storage module, and the methanol Wen Pianzhi is compared with the temperature deviation threshold value; if the methanol Wen Pianzhi is smaller than or equal to Wen Pian threshold, the temperature bias is judged to be normal, and if the methanol Wen Pianzhi is larger than Wen Pian threshold, the temperature bias is judged to be abnormal;
when the temperature deviation is abnormal, summing the methanol speed data of all analysis nodes in the previous analysis period, taking an average value to obtain a real methanol speed value in the previous analysis period, obtaining a methanol speed upper limit value and an alcohol speed adjustable threshold value through a storage module, marking the difference value between the methanol speed threshold value and the methanol speed upper limit value as an alcohol speed adjustable value, and comparing the alcohol speed adjustable value with the alcohol speed adjustable threshold value;
If the alcohol speed adjustable value is greater than or equal to the alcohol speed adjustable threshold value, generating a judging signal P1, if the alcohol speed adjustable value is smaller than the alcohol speed adjustable threshold value, generating a judging signal P2, and transmitting the judging signal P1 or the judging signal P2 to a feedback early warning module through a heat exchange analysis platform; the feedback early-warning module receives the judging signal P1 and then sends out a control instruction to improve the methanol inflow speed, and the feedback early-warning module receives the judging signal P2 and then sends out a control instruction to slow down the cold water inflow speed.
7. The heat exchange condensing device for methanol production with high heat transfer efficiency according to claim 1, wherein the heat exchange mechanism (5) comprises methanol aggregation boxes (52) positioned at two sides inside the heat exchange condensing box (1), a plurality of groups of heat exchange tubes (51) are arranged on the opposite sides of the two groups of methanol aggregation boxes (52), rectangular mounting seats (53) are fixedly arranged on the sides, away from each other, of the two groups of methanol aggregation boxes (52), and limiting sealing grooves are formed in the rectangular mounting seats (53);
rectangular hollow tubes (54) inserted into the limiting seal grooves are arranged on one sides of the rectangular mounting seats (53) back to the methanol gathering boxes (52), one sides of the rectangular hollow tubes (54) back to the rectangular mounting seats (53) are fixed and communicated with the corresponding rotary conveying pipes (8) through manual mounting and dismounting mechanisms (7), rectangular sealing rings (55) located in the limiting seal grooves are fixedly arranged on the outer peripheral surfaces of the rectangular hollow tubes (54), and the rectangular sealing rings (55) are fixedly connected with the corresponding methanol gathering boxes (52) through connecting springs (56).
8. The heat exchange condensing device for methanol production with high heat transfer efficiency according to claim 7, wherein the manual mounting and dismounting mechanism (7) is provided with a plurality of groups on two sides of the heat conduction exchanging mechanism (5), the manual mounting and dismounting mechanism (7) comprises a fixed block (71) fixedly arranged at one end of a rectangular hollow pipe (54) and a vertical positioning rod (72) penetrating through the fixed block (71), a positioning groove (73) is formed in the outer peripheral surface of the rotary conveying pipe (8), one end of the rotary conveying pipe (8) is inserted into the corresponding rectangular hollow pipe (54), the bottom end of the vertical positioning rod (72) is inserted into the corresponding positioning groove (73), a first annular block (75) is fixedly arranged on the outer peripheral surface of the vertical positioning rod (72), and the first annular block (75) is positioned below the fixed block (71) and is connected with the fixed block through a reset spring (74);
the top of vertical locating lever (72) is fixed to be set up guide sleeve (76), install on guide sleeve (76) and run through its inside horizontal locking lever (79), locking groove (711) have been seted up to the one end of rectangle hollow tube (54), in corresponding locking groove (711) were inserted to the one end of horizontal locking lever (79), the other end of horizontal locking lever (79) is fixed to be set up and is pulled piece (77), the outer peripheral face of horizontal locking lever (79) is fixed to be set up second annular piece (710), and second annular piece (710) link to each other through compression spring (78) with guide sleeve (76).
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