CN112322799A - Intelligent control system for water evaporation in sugar production process - Google Patents
Intelligent control system for water evaporation in sugar production process Download PDFInfo
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- CN112322799A CN112322799A CN202011132472.4A CN202011132472A CN112322799A CN 112322799 A CN112322799 A CN 112322799A CN 202011132472 A CN202011132472 A CN 202011132472A CN 112322799 A CN112322799 A CN 112322799A
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- Prior art keywords
- effect evaporation
- steam
- effect
- control system
- tank
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- 238000001704 evaporation Methods 0.000 title claims abstract description 139
- 230000008020 evaporation Effects 0.000 title claims abstract description 125
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009923 sugaring Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 23
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006188 syrup Substances 0.000 description 2
- 235000020357 syrup Nutrition 0.000 description 2
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229960004793 sucrose Drugs 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B30/00—Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
- C13B30/002—Evaporating or boiling sugar juice
- C13B30/007—Multiple effect evaporation
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B25/00—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices
- C13B25/06—Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices combined with measuring instruments for effecting control of the process
Abstract
The invention discloses an intelligent control system for water evaporation in a sugar making process, which comprises a 1# -2# first-effect evaporation tank, a 1# -2# second-effect evaporation tank, a final-effect evaporation tank and a PLC (programmable logic controller) control system, wherein a top steam output port of the 1# first-effect evaporation tank is connected with a steam input port of the 1# second-effect evaporation tank through a connecting pipe; and a steam outlet at the top of the 2# single-effect evaporation tank is connected with a steam inlet of the 2# double-effect evaporation tank through a connecting pipe. The intelligent control system for water evaporation in the sugar making process is designed into a mode of two groups of double-effect evaporation tanks, and because the utilization rate of double-effect high-temperature steam is highest in multiple-effect evaporation, two groups of double-effect evaporation tanks are selected, and finally the final-effect evaporation tanks are combined for evaporation, so that the evaporation time is greatly reduced, meanwhile, the air storage tank is arranged, the double-effect waste heat and the steam input header pipe are communicated and mixed, a heat source is provided for the final-effect evaporation tanks again, and energy is saved.
Description
Technical Field
The invention relates to the technical field of sugar industry, in particular to an intelligent control system for water evaporation in a sugar making process.
Background
Sugar is a basic industry of the food industry, is a raw material industry of various products such as paper making, chemical industry, fermentation, medicine, building materials, furniture and the like, and plays an important role in national economy.
When sugar cane is adopted for making sugar, firstly cane juice which is squeezed and clarified and has high water content is evaporated to remove a large amount of water, the cane juice is concentrated to syrup with the water content of about 50 percent, then the cane juice is further bleached and clarified to reach the syrup with the water content of about 35 percent, and finally the cane juice is concentrated and cooked until cane sugar crystals are separated out.
The most adopted equipment during concentration is a double-effect evaporator and a multi-effect evaporator, the advantages of the double-effect evaporator and the multi-effect evaporator are different, but the double-effect evaporator and the multi-effect evaporator are both used for saving high-temperature steam and reducing evaporation cost.
At present, the existing double-effect evaporator has the problems that the requirement on steam temperature is high, and the utilization rate of waste heat after double-effect evaporation is low; the multi-effect evaporator can well fully utilize the heat of high-temperature steam, but the evaporation rate of the evaporation tank at the rear section and the tail section is greatly reduced, the production period is long, and the evaporation condition of cane juice is not mastered and controlled in real time.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an intelligent control system for water evaporation in a sugar making process.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent control system for water evaporation in a sugar making process comprises a 1# -2# first-effect evaporation tank, a 1# -2# second-effect evaporation tank, a final-effect evaporation tank and a PLC control system, wherein a steam output port at the top of the 1# first-effect evaporation tank is connected with a steam input port of the 1# second-effect evaporation tank through a connecting pipe; the top steam outlet of the No. 2 first-effect evaporation tank is connected with the steam inlet of the No. 2 second-effect evaporation tank through a connecting pipe; a steam input port of the final-effect evaporation tank is connected with a gas storage tank, a top steam output port of the 1# -2# two-effect evaporation tank is communicated with a second steam-water separator through a conveying pipe, and a gas outlet end of the second steam-water separator is communicated with the gas storage tank; the bottom discharge opening of the 1# -2# two-effect evaporation tank is communicated with the feed inlet of the final-effect evaporation tank; the steam input header pipe is respectively communicated with the steam input ports of the 1# -2# one-effect evaporation tanks; the air outlets at the bottoms of the 1# -2# first-effect evaporation tanks are connected with first steam-water separators, and the air outlet ends of the first steam-water separators are communicated with a connecting pipe; and a gas outlet at the bottom of the 1# -2# two-effect evaporation tank is communicated with the conveying pipe through a first steam-water separator.
Preferably, the top of the gas storage tank is communicated with the steam input main pipe through a gas pipe, a temperature sensor and a safety valve are installed on the side face of the gas storage tank, the temperature sensor is connected with the PLC through a signal cable, and a steam output port at the top end of the final effect evaporation tank is communicated with an input end of the second steam-water separator.
Preferably, the 1# -2# first-effect evaporation tank, the 1# -2# second-effect evaporation tank and the final-effect evaporation tank are identical in specification, the surface of each first-effect evaporation tank is provided with a temperature detector, the side surface of each first-effect evaporation tank is provided with a sugar degree detection port, the bottom of each first-effect evaporation tank is provided with a liquid level meter, and the liquid level meters, the temperature detectors and the PLC control system are connected through signal cables.
Preferably, electromagnetic valves are respectively installed at the joint of the steam input main pipe and the 1# -2# single-effect evaporation tank and the surface of the gas transmission pipe, a delivery pump and an electromagnetic valve are arranged at a bottom discharge port of the 1# -2# single-effect evaporation tank, an electromagnetic valve is arranged at a bottom discharge port of the 1# -2# double-effect evaporation tank, the electromagnetic valve and the delivery pump are both connected with a PLC control system through a signal cable, and the delivery pump is connected with a bottom discharge port of the 1# -2# single-effect evaporation tank and a feed inlet of the 1# -2# double-effect evaporation tank.
Preferably, an electromagnetic flow valve is arranged in front of the bottom output end of the air storage tank and a steam input port of the final effect evaporation tank, and the electromagnetic flow valve is connected with the PLC control system through a signal cable.
The invention has the following beneficial effects:
1. the intelligent control system for water evaporation in the sugar making process is designed into a mode of two groups of double-effect evaporation tanks, and because the utilization rate of double-effect high-temperature steam is highest in multiple-effect evaporation, two groups of double-effect evaporation tanks are selected, and finally the final-effect evaporation tanks are combined for evaporation, so that the evaporation time is greatly reduced, meanwhile, the air storage tank is arranged, the double-effect waste heat and the steam input header pipe are communicated and mixed, a heat source is provided for the final-effect evaporation tanks again, and energy is saved.
2. The intelligent control system for water evaporation in the sugar making process is controlled by a PLC control system, combines a plurality of electromagnetic valves, a temperature sensor, an electromagnetic flow valve, a liquid level meter and a delivery pump, can accurately control the operation of each link according to the programming in the PLC system, and controls the air pressure in the tank through air intake and air output, thereby reducing the boiling point and improving the evaporation efficiency.
Drawings
FIG. 1 is a diagram of the overall architecture of an intelligent control system for water evaporation in a sugar manufacturing process according to the present invention;
FIG. 2 is an enlarged schematic view of a single evaporation tank of the intelligent control system for water evaporation in the sugar manufacturing process according to the present invention;
FIG. 3 is a communication block diagram of an intelligent control system for water evaporation during sugar manufacturing.
In the figure: 1. 1# one-effect evaporation tank; 2. 2# one-effect evaporator; 3. a 1# two-effect evaporation tank; 4. a 2# two-effect evaporation tank; 5. a steam outlet; 6. a steam input port; 7. a final effect evaporation tank; 8. a discharge opening; 9. a feed inlet; 10. a steam input main pipe, 11 and a connecting pipe; 12. a gas storage tank; 13. a delivery pipe; 14. a second steam-water separator; 15. a first steam-water separator; 16. an air outlet; 17. a gas delivery pipe; 18. a temperature sensor; 19. a safety valve; 20. a sugar degree detection port; 21. a liquid level meter; 22. a delivery pump; 23. an electromagnetic flow valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, an intelligent control system for water evaporation in a sugar making process comprises 1# -2# first- effect evaporation tanks 1, 2, 1# -2# second- effect evaporation tanks 3, 4, a final-effect evaporation tank 7 and a PLC control system, wherein a top steam outlet 5 of the 1# first-effect evaporation tank 1 is connected with a steam inlet 6 of the 1# second-effect evaporation tank 3 through a connecting pipe 11; the top steam outlet 5 of the No. 2 single-effect evaporation tank 2 is connected with the steam inlet 6 of the No. 2 double-effect evaporation tank 4 through a connecting pipe 11.
A steam input port 6 of the final-effect evaporation tank 7 is connected with a gas storage tank 12, a top steam output port 5 of the 1# -2# two- effect evaporation tanks 3 and 4 is communicated with a second steam-water separator 14 through a conveying pipe 13, a gas outlet end of the second steam-water separator 14 is communicated with the gas storage tank 12, and bottom discharge ports 8 of the 1# -2# two- effect evaporation tanks 3 and 4 are communicated with a feed port 9 of the final-effect evaporation tank 7; the steam input header pipe 10 is respectively communicated with the steam input ports 6 of the 1# -2# one- effect evaporation tanks 1 and 2; the overall architecture of the system is designed into a mode of two groups of double-effect evaporation tanks, and because the utilization rate of double-effect high-temperature steam is highest in multiple-effect evaporation, the two groups of double-effect evaporation are selected, and finally the double-effect evaporation tanks 7 are combined for evaporation, so that the evaporation time is greatly reduced, the gas storage tank 12 is arranged, the double-effect waste heat and the steam input main pipe 10 are communicated and mixed, and a heat source and energy are provided for the double-effect evaporation tanks 7 again.
The air outlets 16 at the bottoms of the 1# -2# first- effect evaporation tanks 1 and 2 are both connected with a first steam-water separator 15, and the air outlet end of the first steam-water separator 15 is communicated with the connecting pipe 11; the air outlets 16 at the bottoms of the 1# -2# two- effect evaporation tanks 3 and 4 are communicated with the conveying pipe 13 through the first steam-water separator 15, and the steam-water separator can remove condensed water in the heat exchange pipes in the evaporation tanks, so that steam with temperature and hot gas generated when sugar liquor in the evaporation tanks boils can be conveyed to the next evaporation tank through the connecting pipe 11 to be used as a heat source, and therefore energy consumption is reduced.
The top of gas holder 12 is passed through gas-supply pipe 17 and steam input house steward 10 intercommunication, the side-mounting of gas holder 12 has temperature sensor 18 and relief valve 19, temperature sensor 18 and PLC control system pass through signal cable connection, the top steam outlet 5 of final effect evaporating pot 7 communicates with the input of second vapour water separator 14, pass through the steam-water separation processing with the preheating steam after the use of two effect evaporating pots, inject gas holder 12 and new high-temperature steam mixture into, come for 7 heat supplies of final effect evaporating pot, the high-temperature steam that 7 cooks the production of final effect evaporating pot simultaneously, can also get into inside gas holder 12, thereby cyclic utilization.
1# -2# one- effect evaporating pot 1, 2, 1# -2# two- effect evaporating pot 3, 4 and final-effect evaporating pot 7's specification are the same, and the surface all installs thermodetector, and the side has been seted up sugar degree detection mouth 20 and the bottom is provided with level gauge 21, and level gauge 21, thermodetector pass signal cable connection with PLC control system.
Electromagnetic valves are arranged at the joints of the steam input header pipe 10 and the 1# -2# first- effect evaporation tanks 1 and 2 and the surfaces of the gas transmission pipes 17, a conveying pump 22 and an electromagnetic valve are arranged at the bottom discharge openings 8 of the 1# -2# first- effect evaporation tanks 1 and 2, electromagnetic valves are arranged at the bottom discharge openings 8 of the 1# -2# second- effect evaporation tanks 3 and 4, the electromagnetic valves and the conveying pump 22 are connected with a PLC control system through signal cables, and the conveying pump 22 is connected with the bottom discharge openings 8 of the 1# -2# first- effect evaporation tanks 1 and 2 and the feed openings 9 of the 1# -2# second- effect evaporation tanks 3 and 4.
The bottom output of gas holder 12 is provided with electromagnetic flow valve 23 before the steam input port 6 of final effect evaporating pot 7, electromagnetic flow valve 23 passes through signal cable connection with PLC control system, through setting up foretell PLC control system that adopts, combine a plurality of solenoid valves, temperature sensor 18, electromagnetic flow valve 23, level gauge 21, conveying pump 22 isoelectronic control element, can be according to the programming in the PLC system, accurate and the operation of controlling each link, through admitting air and gas output, control tank internal gas pressure, thereby reduce the boiling point, improve evaporation efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides an intelligent control system of sugaring in-process moisture evaporation, includes 1# -2# one effect evaporating pot (1, 2), 1# -2# two effect evaporating pot (3, 4), final effect evaporating pot (7) and PLC control system, its characterized in that:
a top steam outlet (5) of the 1# single-effect evaporation tank (1) is connected with a steam inlet (6) of the 1# double-effect evaporation tank (3) through a connecting pipe (11); a top steam outlet (5) of the 2# single-effect evaporation tank (2) is connected with a steam inlet (6) of the 2# double-effect evaporation tank (4) through a connecting pipe (11);
a steam input port (6) of the final-effect evaporation tank (7) is connected with a gas storage tank (12), a top steam output port (5) of the 1# -2# two-effect evaporation tanks (3, 4) is communicated with a second steam-water separator (14) through a conveying pipe (13), and a gas outlet end of the second steam-water separator (14) is communicated with the gas storage tank (12);
the bottom discharge opening (8) of the 1# -2# two-effect evaporation tanks (3, 4) is communicated with the feed inlet (9) of the final-effect evaporation tank (7); the steam input header pipe (10) is respectively communicated with the steam input ports (6) of the 1# -2# single-effect evaporation tanks (1, 2);
the air outlets (16) at the bottoms of the 1# -2# single-effect evaporation tanks (1, 2) are both connected with a first steam-water separator (15), and the air outlet end of the first steam-water separator (15) is communicated with the connecting pipe (11); the bottom air outlets (16) of the 1# -2# two-effect evaporation tanks (3, 4) are communicated with the conveying pipe (13) through a first steam-water separator (15).
2. The intelligent control system for water evaporation in sugar manufacturing process according to claim 1, characterized in that: the top of the gas storage tank (12) is communicated with the steam input main pipe (10) through a gas pipe (17), a temperature sensor (18) and a safety valve (19) are installed on the side face of the gas storage tank (12), the temperature sensor (18) is connected with a PLC control system through a signal cable, and a top steam output port (5) of the final-effect evaporation tank (7) is communicated with the input end of the second steam-water separator (14).
3. The intelligent control system for water evaporation in sugar manufacturing process according to claim 1, characterized in that: 1# -2# one imitates the specifications of evaporating pot (1, 2), 1# -2# two imitate evaporating pot (3, 4) and final effect evaporating pot (7) the same, and the surface all installs thermodetector, and the side has been seted up sugar degree detection mouth (20) and the bottom is provided with level gauge (21), thermodetector pass through signal cable connection with PLC control system.
4. The intelligent control system for water evaporation in sugar manufacturing process according to claim 1, characterized in that: the steam input header pipe (10) and the connection part of the 1# -2# first-effect evaporation tanks (1 and 2) and the surface of the gas transmission pipe (17) are respectively provided with an electromagnetic valve, the bottom discharge openings (8) of the 1# -2# first-effect evaporation tanks (1 and 2) are respectively provided with a conveying pump (22) and an electromagnetic valve, the bottom discharge openings (8) of the 1# -2# second-effect evaporation tanks (3 and 4) are respectively provided with an electromagnetic valve, the electromagnetic valves and the conveying pumps (22) are respectively connected with a PLC control system through signal cables, and the conveying pumps (22) are connected with the bottom discharge openings (8) of the 1# -2# first-effect evaporation tanks (1 and 2) and the feed inlets (9) of the 1# -2# second-effect evaporation tanks (3 and 4).
5. The intelligent control system for water evaporation in sugar manufacturing process according to claim 1, characterized in that: an electromagnetic flow valve (23) is arranged in front of a steam input port (6) of the bottom output end of the gas storage tank (12) and the final effect evaporation tank (7), and the electromagnetic flow valve (23) is connected with a PLC control system through a signal cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011132472.4A CN112322799A (en) | 2020-10-21 | 2020-10-21 | Intelligent control system for water evaporation in sugar production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011132472.4A CN112322799A (en) | 2020-10-21 | 2020-10-21 | Intelligent control system for water evaporation in sugar production process |
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| CN112322799A true CN112322799A (en) | 2021-02-05 |
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| CN202011132472.4A Pending CN112322799A (en) | 2020-10-21 | 2020-10-21 | Intelligent control system for water evaporation in sugar production process |
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| US20150143806A1 (en) * | 2012-11-15 | 2015-05-28 | Kevin Lee Friesth | Quintuple-Effect Generation Multi-Cycle Hybrid Renewable Energy System with Integrated Energy Provisioning, Storage Facilities and Amalgamated Control System Cross-Reference to Related Applications |
| CN104732862A (en) * | 2015-03-12 | 2015-06-24 | 来宾职业教育中心学校 | Teaching and practical training device for sugaring manufacturing technology |
| CN104762417A (en) * | 2015-04-02 | 2015-07-08 | 广西大学 | Sugar juice evaporation method |
| CN104946802A (en) * | 2015-06-29 | 2015-09-30 | 南宁糖业股份有限公司 | Automatic control system of intermittent sugar boiling containers in cane sugar factories |
| CN210114843U (en) * | 2019-06-11 | 2020-02-28 | 山东兆光色谱分离技术有限公司 | Multifunctional falling film evaporator for concentrating syrup |
-
2020
- 2020-10-21 CN CN202011132472.4A patent/CN112322799A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150143806A1 (en) * | 2012-11-15 | 2015-05-28 | Kevin Lee Friesth | Quintuple-Effect Generation Multi-Cycle Hybrid Renewable Energy System with Integrated Energy Provisioning, Storage Facilities and Amalgamated Control System Cross-Reference to Related Applications |
| CN104032040A (en) * | 2014-06-23 | 2014-09-10 | 菱花集团有限公司 | Method and device for recycling secondary steam during sugar solution concentration |
| CN104531905A (en) * | 2015-01-05 | 2015-04-22 | 广西南宁富慧达机电有限公司 | Automatic steam balance temperature rise system for sugar production process and implement method thereof |
| CN104732862A (en) * | 2015-03-12 | 2015-06-24 | 来宾职业教育中心学校 | Teaching and practical training device for sugaring manufacturing technology |
| CN104762417A (en) * | 2015-04-02 | 2015-07-08 | 广西大学 | Sugar juice evaporation method |
| CN104946802A (en) * | 2015-06-29 | 2015-09-30 | 南宁糖业股份有限公司 | Automatic control system of intermittent sugar boiling containers in cane sugar factories |
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Application publication date: 20210205 |