CN204767504U - Granulose flash distillation cooling system - Google Patents

Granulose flash distillation cooling system Download PDF

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Publication number
CN204767504U
CN204767504U CN201520452112.0U CN201520452112U CN204767504U CN 204767504 U CN204767504 U CN 204767504U CN 201520452112 U CN201520452112 U CN 201520452112U CN 204767504 U CN204767504 U CN 204767504U
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China
Prior art keywords
syrup
heat exchanger
flash distillation
pipe
flash
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CN201520452112.0U
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Chinese (zh)
Inventor
冯纪网
许名强
黄海龙
赵辰龙
刘世源
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Myande Group Co Ltd
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Myande Group Co Ltd
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Abstract

The utility model relates to a granulose flash distillation cooling system, the upper portion lateral wall of flash tank is connected with saccharification liquid inlet pipe, the flash tank bottom is connected with saccharification liquid delivery pump entry, the export of saccharification liquid delivery pump is connected with saccharification liquid discharging pipe, the flash tank top is connected with saccharification liquid flash distillation steam pipe, the export of saccharification liquid flash distillation steam pipe is connected with heat exchanger steam inlet through the flash distillation steam valve, heat exchanger condensate outlet is connected with the heat exchanger drain pipe, the import of heat exchanger syrup is connected with the syrup inlet pipe, heat exchanger syrup export is connected through the syrup feed inlet of high temperature syrup pipe with knockout drum upper portion lateral wall, the bottom of knockout drum is connected through the entry of syrup discharging pipe with the syrup delivery pump, the export of syrup delivery pump is connected with finished product syrup pipe, the top of knockout drum is connected with syrup flash distillation steam pipe. Syrup flash distillation vapour gets into the condenser and is become the play of steam condensate log raft by the cooling water condensation. This system can carry out waste heat utilization by flash distillation vapour, reduces the consumption of cooling -water.

Description

A kind of starch sugar flash distillation cooling system
Technical field
The utility model relates to a kind of starch sugar flash distillation cooling system, belongs to starch sugar technical field of processing equipment.
Background technology
The typical starch sugar flash distillation temperature reduction technology in current starch sugar refinery is enter flash tank through steam ejection liquefaction saccharified liquid out, flash distillation cooling in flash tank, the bottom of flash tank is connected with material-handling pump, saccharified liquid is sent by material-handling pump, the top of flash tank is connected with flash distillation steam pipe, and the direct plate type heat exchanger of indirect steam that flash distillation produces cools and becomes condensed water discharge.
There is following weak point in traditional starch sugar flash distillation cooling system: a large amount of indirect steams is directly cooled cooling, both wastes indirect steam, consumes recirculated cooling water again; Also cause the thermal pollution of environment.
More and more nervous and more and more pay attention to environmental protection instantly at the energy, how to reduce steam and cooling-water consumption, reducing the discharge of environment is the problem that current starch sugar refinery needs to solve.
Utility model content
The purpose of this utility model is, overcomes problems of the prior art, provides a kind of starch sugar flash distillation cooling system, can produce flash steam carry out UTILIZATION OF VESIDUAL HEAT IN to starch sugar flash distillation.
For solving above technical problem, a kind of starch sugar flash distillation cooling system of the present utility model, comprise flash tank, the upper portion side wall of described flash tank is connected with saccharified liquid feed pipe, the bottom of described flash tank is connected with the entrance of saccharified liquid delivery pump, described saccharified liquid conveying delivery side of pump is connected with saccharified liquid discharge nozzle, the top of described flash tank is connected with saccharified liquid flash distillation steam pipe, the outlet of described saccharified liquid flash distillation steam pipe is connected with the steam inlet of heat exchanger by flash distillation steam valve, the condensation-water drain of described heat exchanger is connected with heat exchanger drainpipe, the syrup intlet of described heat exchanger is connected with syrup feed pipe, the syrup outlet of described heat exchanger is connected with high temperature syrup tube, described high temperature syrup tube is connected with the syrup charging aperture of knockout drum upper portion side wall, the bottom of described knockout drum is connected by the entrance of syrup discharge nozzle with syrup delivery pump, described syrup delivery delivery side of pump is connected with finished product syrup tube, the top of described knockout drum is connected with syrup flash distillation steam pipe.
Relative to prior art, the utility model achieves following beneficial effect: the saccharified liquid of starch sugar enters falling liquid film flash distillation flash tank from saccharified liquid feed pipe, and the bottom that saccharified liquid falls into flash tank is sent to saccharified liquid discharge nozzle through saccharified liquid delivery pump; The flash steam of saccharified liquid enters the steam inlet of heat exchanger by flash distillation steam valve and saccharified liquid flash distillation steam pipe from the top of flash tank, syrup enters the syrup intlet of heat exchanger from syrup feed pipe, in heat exchanger, the flash steam of saccharified liquid and syrup carry out indirect heat exchange, become condensed water after flash steam heat release to discharge from the condensation-water drain of heat exchanger, and enter heat exchanger drainpipe; Discharge from the syrup outlet of heat exchanger after syrup is heated, enter high temperature syrup tube, then enter falling liquid film flash distillation in knockout drum by high temperature syrup tube, the syrup moisture content after flash distillation reduces and falls into bottom knockout drum, is pumped into finished product syrup tube goes filling by syrup delivery.This system utilizes the waste heat of saccharified liquid flash steam to heat syrup, has both reduced the energy consumption of syrup evaporation, and the condensation again saving saccharified liquid flash steam consumes.
As preferred version of the present utility model, the outlet of described syrup flash distillation steam pipe is connected with the steam inlet of condenser, the condensation-water drain of described condenser is connected with condenser drainpipe, and described condenser drainpipe and described heat exchanger drainpipe access condensed water house steward jointly; The cooling water inlet of described condenser is connected with low-temperature circulating water pipe, and the coolant outlet of described condenser is connected with high temperature circulation water pipe.The syrup flash steam flowed out from knockout drum top enters the steam inlet of condenser from syrup flash distillation steam pipe, cooling water enters the cooling water inlet of condenser from low-temperature circulating water pipe, within the condenser, syrup flash steam and cooling water carry out indirect heat exchange, syrup flash steam is condensed into the discharge of the liquid condensation-water drain from condenser and enters condenser drainpipe, and cooling water temperature enters high temperature circulation water pipe after raising; The condensed water that condenser and heat exchanger discharge jointly enters condensed water house steward and is recovered utilization.
As preferred version of the present utility model, the steam inlet of described heat exchanger is also connected with raw steam pipe by raw steam valve.The adjustment of raw steam valve and flash steam valve opening, had both reduced the consumption of live steam, had ensured again that syrup was heated to the temperature of setting.
As preferred version of the present utility model, the top of described flash tank is provided with flash tank temperature controller, and described flash distillation steam valve is internally piloted valve and aperture is controlled by the temperature that described flash tank temperature controller detects.When the temperature drift of flash tank, the aperture of flash distillation steam valve increases to strengthen evaporation capacity; When the temperature of flash tank is on the low side, the aperture of flash distillation steam valve reduces to reduce evaporation capacity.
As preferred version of the present utility model, the condensation-water drain of described heat exchanger is connected with heat exchanger vacuum-pumping tube, the condensation-water drain of described condenser is connected with condenser vacuum-pumping tube, described heat exchanger vacuum-pumping tube is connected with the pump orifice of water-ring vacuum pump respectively with described condenser vacuum-pumping tube, and the water supplement port of described water-ring vacuum pump is connected with running water pipe.Make the hot side of condenser and heat exchanger keep certain vacuum by the suction of water-ring vacuum pump, the temperature of condensed water can be reduced, reclaim the heat of flash steam more fully.
Accompanying drawing explanation
Be described in further detail the utility model below in conjunction with the drawings and specific embodiments, accompanying drawing only provides reference and explanation use, is not used to limit the utility model.
Fig. 1 is the flow chart of the utility model starch sugar flash distillation cooling system.
In figure: 1. flash tank; 1a. flash tank temperature controller; 2. heat exchanger; 3. knockout drum; 4. condenser; B1. saccharified liquid delivery pump; B2. syrup delivery pump; B3. water-ring vacuum pump; G1. saccharified liquid feed pipe; G2. saccharified liquid discharge nozzle; G3. saccharified liquid flash distillation steam pipe; G4. raw steam pipe; G5. heat exchanger drainpipe; G6. syrup feed pipe; G7. high temperature syrup tube; G8. syrup flash distillation steam pipe; G9. syrup discharge nozzle; G10. finished product syrup tube; G11. condenser drainpipe; G12. condensed water house steward; G13. low-temperature circulating water pipe; G14. high temperature circulation water pipe; G15. heat exchanger vacuum-pumping tube; G16. condenser vacuum-pumping tube; G17. running water pipe; V1. flash distillation steam valve; V2. raw steam valve.
Detailed description of the invention
As shown in Figure 1, the utility model starch sugar flash distillation cooling system comprises flash tank 1, heat exchanger 2, knockout drum 3 and condenser 4, the upper portion side wall of flash tank 1 is connected with saccharified liquid feed pipe G1, the bottom of flash tank 1 is connected with the entrance of saccharified liquid delivery pump B1, the outlet of saccharified liquid delivery pump B1 is connected with saccharified liquid discharge nozzle G2, the top of flash tank 1 is connected with saccharified liquid flash distillation steam pipe G3, the outlet of saccharified liquid flash distillation steam pipe G3 is connected with the steam inlet of heat exchanger 2 by flash distillation steam valve V1, the condensation-water drain of heat exchanger 2 is connected with heat exchanger drainpipe G5, the syrup intlet of heat exchanger 2 is connected with syrup feed pipe G6, the syrup outlet of heat exchanger 2 is connected with high temperature syrup tube G7, high temperature syrup tube G7 is connected with the syrup charging aperture of knockout drum 3 upper portion side wall, the bottom of knockout drum 3 is connected with the entrance of syrup delivery pump B2 by syrup discharge nozzle G9, the outlet of syrup delivery pump B2 is connected with finished product syrup tube G10, the top of knockout drum 3 is connected with syrup flash distillation steam pipe G8.
The saccharified liquid of starch sugar enters falling liquid film flash distillation flash tank 1 from saccharified liquid feed pipe G1, and the bottom that saccharified liquid falls into flash tank 1 is sent to saccharified liquid discharge nozzle G2 through saccharified liquid delivery pump B1; The flash steam of saccharified liquid enters the steam inlet of heat exchanger 2 by flash distillation steam valve V1 and saccharified liquid flash distillation steam pipe G3 from the top of flash tank 1, syrup enters the syrup intlet of heat exchanger 2 from syrup feed pipe G6, in heat exchanger 2, the flash steam of saccharified liquid and syrup carry out indirect heat exchange, become condensed water after flash steam heat release to discharge from the condensation-water drain of heat exchanger 2, and enter heat exchanger drainpipe G5; Discharge from the syrup outlet of heat exchanger 2 after syrup is heated, enter high temperature syrup tube G7, enter falling liquid film flash distillation in knockout drum 3 by high temperature syrup tube G7 again, the syrup moisture content after flash distillation reduces and falls into bottom knockout drum 3, sends into finished product syrup tube G10 go filling by syrup delivery pump B2.This system utilizes the waste heat of saccharified liquid flash steam to heat syrup, has both reduced the energy consumption of syrup evaporation, and the condensation again saving saccharified liquid flash steam consumes.
The outlet of syrup flash distillation steam pipe G8 is connected with the steam inlet of condenser 4, and the condensation-water drain of condenser 4 is connected with condenser drainpipe G11, and condenser drainpipe G11 and heat exchanger drainpipe G5 accesses condensed water house steward G12 jointly; The cooling water inlet of condenser 4 is connected with low-temperature circulating water pipe G13, and the coolant outlet of condenser 4 is connected with high temperature circulation water pipe G14.The syrup flash steam flowed out from knockout drum 3 top enters the steam inlet of condenser 4 from syrup flash distillation steam pipe G8, cooling water enters the cooling water inlet of condenser 4 from low-temperature circulating water pipe G13, in condenser 4, syrup flash steam and cooling water carry out indirect heat exchange, syrup flash steam is condensed into the discharge of the liquid condensation-water drain from condenser 4 and enters condenser drainpipe G11, and cooling water temperature enters high temperature circulation water pipe G14 after raising; The condensed water that condenser 4 and heat exchanger 2 discharge jointly enters condensed water house steward G12 and is recovered utilization.
The steam inlet of heat exchanger 2 is also connected with raw steam pipe G4 by raw steam valve V2.The adjustment of raw steam valve V2 and flash distillation steam valve V1 aperture, had both reduced the consumption of live steam, had ensured again that syrup was heated to the temperature of setting.
The top of flash tank 1 is provided with flash tank temperature controller 1a, and flash distillation steam valve V1 is internally piloted valve and aperture is controlled by the temperature that flash tank temperature controller 1a detects.When the temperature drift of flash tank, the aperture of flash distillation steam valve V1 increases to strengthen evaporation capacity; When the temperature of flash tank is on the low side, the aperture of flash distillation steam valve V1 reduces to reduce evaporation capacity.
The condensation-water drain of heat exchanger 2 is connected with heat exchanger vacuum-pumping tube G15, the condensation-water drain of condenser 4 is connected with condenser vacuum-pumping tube G16, heat exchanger vacuum-pumping tube G15 is connected with the pump orifice of water-ring vacuum pump B3 respectively with condenser vacuum-pumping tube G16, and the water supplement port of water-ring vacuum pump is connected with running water pipe G17.Make condenser 4 keep certain vacuum with the hot side of heat exchanger 2 by the suction of water-ring vacuum pump B3, the temperature of condensed water can be reduced, reclaim the heat of flash steam more fully.
The foregoing is only the better possible embodiments of the utility model, non-ly therefore limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.The utility model can pass through without the technical characteristic described or adopt existing techniques in realizing, does not repeat them here.

Claims (5)

1. a starch sugar flash distillation cooling system, comprise flash tank, the upper portion side wall of described flash tank is connected with saccharified liquid feed pipe, the bottom of described flash tank is connected with the entrance of saccharified liquid delivery pump, described saccharified liquid conveying delivery side of pump is connected with saccharified liquid discharge nozzle, the top of described flash tank is connected with saccharified liquid flash distillation steam pipe, it is characterized in that: the outlet of described saccharified liquid flash distillation steam pipe is connected with the steam inlet of heat exchanger by flash distillation steam valve, the condensation-water drain of described heat exchanger is connected with heat exchanger drainpipe, the syrup intlet of described heat exchanger is connected with syrup feed pipe, the syrup outlet of described heat exchanger is connected with high temperature syrup tube, described high temperature syrup tube is connected with the syrup charging aperture of knockout drum upper portion side wall, the bottom of described knockout drum is connected by the entrance of syrup discharge nozzle with syrup delivery pump, described syrup delivery delivery side of pump is connected with finished product syrup tube, the top of described knockout drum is connected with syrup flash distillation steam pipe.
2. starch sugar flash distillation cooling system according to claim 1, it is characterized in that: the outlet of described syrup flash distillation steam pipe is connected with the steam inlet of condenser, the condensation-water drain of described condenser is connected with condenser drainpipe, and described condenser drainpipe and described heat exchanger drainpipe access condensed water house steward jointly; The cooling water inlet of described condenser is connected with low-temperature circulating water pipe, and the coolant outlet of described condenser is connected with high temperature circulation water pipe.
3. starch sugar flash distillation cooling system according to claim 1, is characterized in that: the steam inlet of described heat exchanger is also connected with raw steam pipe by raw steam valve.
4. starch sugar flash distillation cooling system according to claim 1, is characterized in that: the top of described flash tank is provided with flash tank temperature controller, and described flash distillation steam valve is internally piloted valve and aperture is controlled by the temperature that described flash tank temperature controller detects.
5. starch sugar flash distillation cooling system according to any one of claim 1 to 4, it is characterized in that: the condensation-water drain of described heat exchanger is connected with heat exchanger vacuum-pumping tube, the condensation-water drain of described condenser is connected with condenser vacuum-pumping tube, described heat exchanger vacuum-pumping tube is connected with the pump orifice of water-ring vacuum pump respectively with described condenser vacuum-pumping tube, and the water supplement port of described water-ring vacuum pump is connected with running water pipe.
CN201520452112.0U 2015-06-29 2015-06-29 Granulose flash distillation cooling system Active CN204767504U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520452112.0U CN204767504U (en) 2015-06-29 2015-06-29 Granulose flash distillation cooling system

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Application Number Priority Date Filing Date Title
CN201520452112.0U CN204767504U (en) 2015-06-29 2015-06-29 Granulose flash distillation cooling system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106390500A (en) * 2016-11-28 2017-02-15 吉林中粮生化有限公司 Method for recycling liquefied flash steam to realize energy conservation
CN107621174A (en) * 2017-09-22 2018-01-23 山东禹王生态食业有限公司 A kind of recycling residual heat system and its application method
US11549751B2 (en) * 2019-01-23 2023-01-10 IntegroEnergy Group Inc. Syrup flash

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106390500A (en) * 2016-11-28 2017-02-15 吉林中粮生化有限公司 Method for recycling liquefied flash steam to realize energy conservation
CN107621174A (en) * 2017-09-22 2018-01-23 山东禹王生态食业有限公司 A kind of recycling residual heat system and its application method
US11549751B2 (en) * 2019-01-23 2023-01-10 IntegroEnergy Group Inc. Syrup flash

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