CN205759823U - Non-scaling heats assembly, the evaporated crystallization device comprising it - Google Patents
Non-scaling heats assembly, the evaporated crystallization device comprising it Download PDFInfo
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- CN205759823U CN205759823U CN201620429524.7U CN201620429524U CN205759823U CN 205759823 U CN205759823 U CN 205759823U CN 201620429524 U CN201620429524 U CN 201620429524U CN 205759823 U CN205759823 U CN 205759823U
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Abstract
The utility model discloses a kind of non-scaling heating assembly and the evaporated crystallization device comprising it, non-scaling heating assembly includes heater and the heat-exchange tube being arranged in heater, and the feeding end of described heat-exchange tube is connected with lower recycle feed pipe by forced circulation pump；The discharge end of described heat-exchange tube connects with the feed end of solid-liquid separator, it it is solids exit end bottom described solid-liquid separator, described solids exit end connects with granule storage tank, being added with inert solid particle in described granule storage tank, described granule storage tank discharge end is by distributor and heat-exchange tube UNICOM.By using non-scaling described herein heating assembly, inert solid particle is with the addition of in heat-exchange tube, dirt induction period can be extended greatly, also existing dirt layer can be washed away removal, so that the cleaning frequency reaches more than 8000 hours (under continuous duty), keep equipment inner wall sparkling clean simultaneously, in the service life of extension device, there is great economic benefit, environmental benefit and social benefit.
Description
Technical field
This utility model relates to a kind of non-scaling heating assembly and the evaporated crystallization device comprising it thereof.
Background technology
The scale problems of the heater various degrees of evaporated crystallization device, it is particularly the inorganic salts such as sodium chloride, sodium sulfate, sodium hydroxide, magnesium chloride, magnesium sulfate at medium, and in the heater of the evaporation and concentration such as sewage disposal, food, sugaring, papermaking, desalinization, oil field waste, diaphragm caustic soda, ion film caustic soda, crystallization apparatus, material owing to being dissolved in feed liquid separates out, and scale problems is the most prominent.Fouling is phenomenon common in evaporated crystallization device, the fouling of evaporated crystallization device, not only reduce effective swept volume of equipment, adding thermal resistance and flow resistance, and the heat transfer coefficient adding heat pipe is reduced, production capacity declines, serious fouling also can make production pause, shorten effective production time, reduce service life of equipment even damage equipment, increase raw material and the consumption of the energy.
After fouling, existing processing mode typically uses mechanical cleaning or two kinds of methods of Chemical cleaning (difference according to dirt thing, the methods such as water soluble method, acid wash, soda boiling, mechanical descaling, pickling corrosion inhibiter, ultrasonic waves for cleaning can be used), equipment can be caused irreversible damage by mechanical cleaning frequently, and equipment is easily caused corrosion by Chemical cleaning, and the substantial amounts of cleaning waste water containing chemical composition can be produced, environment is caused the biggest pressure.Prior art is badly in need of a kind of non-scaling heating assembly being not easy fouling and the evaporated crystallization device comprising it thereof.
Utility model content
The purpose of this utility model is to overcome defect present in prior art, it is provided that a kind of non-scaling heating assembly being not easy fouling and the evaporated crystallization device comprising it thereof.
For achieving the above object, the technical solution of the utility model there is provided a kind of non-scaling heating assembly, including heater and the heat-exchange tube being arranged in heater, the feeding end of described heat-exchange tube is connected with lower recycle feed pipe by forced circulation pump, and stock solution is from the addition of lower recycle feed pipe and flows along the feeding end of heat-exchange tube to discharge end under the promotion of forced circulation pump and carries out heat exchange；The discharge end of described heat-exchange tube connects with the feed end of solid-liquid separator, it it is solids exit end bottom described solid-liquid separator, described solids exit end connects with granule storage tank, it is added with inert solid particle in described granule storage tank, described granule storage tank discharge end, by distributor and heat-exchange tube UNICOM, in described inert solid particle is uniformly distributed in heat-exchange tube by distributor and mixes with stock solution.
By using non-scaling described herein heating assembly, inert solid particle is with the addition of in heat-exchange tube, dirt induction period can be extended greatly, also existing dirt layer can be washed away removal, so that the cleaning frequency reaches more than 8000 hours (under continuous duty), keep equipment inner wall sparkling clean simultaneously, in the service life of extension device, there is great economic benefit, environmental benefit and social benefit.
As preferably, described distributor includes the first thick distributor and the second thin distributor set gradually, and the described second thin distributor discharge end connects with heat-exchange tube bottom.Such distribution is so that inert solid particle is more evenly dispersed in heat-exchange tube, and antiscaling effect becomes apparent from.
As preferably, described inert solid particle is any one or the combination of any two kinds in polytetrafluoroethylgranule granule, corundum in granules, glass particle or ceramic particle or the combination of any three kinds or the combination of four kinds.Such design is a kind of optimization to scheme.
As preferably, described inert solid particle is the size granule at 1 ~ 10mm.Such design is a kind of optimization to scheme, it is ensured that antiscaling effect.
As preferably, described inert solid particle is 5% ~ 15% with the volume ratio of stock solution.Such design is a kind of optimization to scheme, it is ensured that antiscaling effect.
As preferably, described solid-liquid separator top is provided with gas-liquid discharge end, and described heater is provided with steam inlet and condensation-water drain.Such design is a kind of optimization to scheme.
A kind of evaporated crystallization device, it includes that non-scaling heats assembly, additionally include crystallizer, described crystallizer is provided with upper circular tube, described upper circular tube connects with gas-liquid discharge end, described lower recycle feed pipe one end connects with forced circulation pump, and the other end does not crystallizes material outlet with crystallizer and connects, and described crystalliser feet is by magma pump and dense magma material outlet.Such design can form the circulation of stock solution between crystallizer and heater.
As preferably, described crystallizer upper end is connected with condenser by secondary steam pipe, and described condenser connects with condensate water pot, and described condensate water pot connects with vacuum pump set.Such design is beneficial to form the recovery of steam and form vacuum in crystallizer, is beneficial to realize flash distillation rapidly.
As preferably, described condensate water pot outlet is connected with condensate pump.Such design is beneficial to condensed water and gets rid of from condensate pump.
Advantage of the present utility model and having the beneficial effects that: by using non-scaling described herein heating assembly, inert solid particle is with the addition of in heat-exchange tube, dirt induction period can be extended greatly, also existing dirt layer can be washed away removal, so that the cleaning frequency reaches more than 8000 hours (under continuous duty), keep equipment inner wall sparkling clean simultaneously, in the service life of extension device, there is great economic benefit, environmental benefit and social benefit；
This device technique is reasonable, floor space is little, requisite space is the least, easy to operate, easily realize industrial automatic control, the feed liquid of high concentration and the evaporating, concentrating and crystallizing of high viscosity feed liquid are also adapted to, existing conventional evaporated crystallization device can also be transformed, equally reach anti-, the purpose of scale removal, solve a fouling difficult problem for current evaporated crystallization device, to the development promoting evaporative crystallization technique, reduce energy consumption, improve resource utilization etc. to have great importance, it is applicable to pharmacy, environmental protection, Caustic soda, mining and metallurgy, national defence, scientific research, food, chemical industry, plant extract, biological engineering, glucose, xylose, evaporation and concentration and the operation of crystallization in the industries such as starch food.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
In figure: 1, heater；2, upper circular tube；3, crystallizer；4, secondary steam pipe；5, condenser；6, condensate water pot；7, vacuum pump set；8, condensate pump；9, magma pump；10, lower recycle feed pipe；11, forced circulation pump；12, the first thick distributor；13, the second thin distributor；14, granule storage tank；15, liquid-solid separator；16, heat-exchange tube.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is further described.Following example are only used for clearly illustrating the technical solution of the utility model, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, a kind of non-scaling heating assembly, including heater 1 and the heat-exchange tube 16 being arranged in heater 1, the feeding end of described heat-exchange tube 16 is connected with lower recycle feed pipe 10 by forced circulation pump 11, and stock solution adds from lower recycle feed pipe 10 and flows along the feeding end of heat-exchange tube 16 to discharge end under the promotion of forced circulation pump 11 and carry out heat exchange；The described discharge end of heat-exchange tube 16 connects with the feed end of solid-liquid separator, it it is solids exit end bottom described solid-liquid separator, described solids exit end connects with granule storage tank 14, it is added with inert solid particle in described granule storage tank 14, described granule storage tank 14 discharge end, by distributor and heat-exchange tube 16 UNICOM, in described inert solid particle is uniformly distributed in heat-exchange tube 16 by distributor and mixes with stock solution.
Described distributor includes the first thick distributor 12 and the second thin distributor 13 set gradually, and the described second thin distributor 13 discharge end connects with heat-exchange tube 16 bottom.
The combination of any one or any two kinds during inert solid particle is polytetrafluoroethylgranule granule, corundum in granules, glass particle or ceramic particle described in described inert solid particle or the combination of any three kinds or the combination of four kinds.Inert solid particle can also be the combination in any of silk screen granule or silk screen and above-mentioned four kinds of granules simultaneously.
Described inert solid particle is the size granule at 1 ~ 10mm.
Described inert solid particle is 5% ~ 15% with the volume ratio of stock solution.Inert solid particle is circulated use at device interior, it year waste only have 0.1%, operating cost is extremely low.
Described solid-liquid separator top is provided with gas-liquid discharge end, and described heater 1 is provided with steam inlet and condensation-water drain.
A kind of evaporated crystallization device, it includes that non-scaling heats assembly, additionally include crystallizer 3, described crystallizer 3 is provided with upper circular tube 2, described upper circular tube 2 connects with gas-liquid discharge end, described lower recycle feed pipe 10 one end connects with forced circulation pump 11, and the other end does not crystallizes material outlet with crystallizer 3 and connects, by magma pump 9 and dense magma material outlet bottom described crystallizer 3.
Described crystallizer 3 upper end is connected with condenser 5 by secondary steam pipe 4, and described condenser 5 connects with condensate water pot 6, and described condensate water pot 6 connects with vacuum pump set 7.
Described condensate water pot 6 outlet is connected with condensate pump 8.
nullEmbodiment 1，First proportionally inert solid particle is disposably joined granule storage tank 14，Simultaneously in heater 1 steam inlet enter steam valve，Lower recycle feed pipe 10 is entered after the stock solution metering of room temperature，Under the swabbing action of forced circulation pump 11, enter heater 1 carry out heat exchange，Inert solid particle in granule storage tank 14 passes through the first thick distributor 12 and effect of the second thin distributor 13，Inert solid particle is evenly distributed in each heat-exchange tube 16，Feed liquid and inert solid particle are under the effect of forced circulation pump 11，Make to be formed vapour in heat-exchange tube 16、Liquid、Solid fluid boiling state，Inert solid particle is constantly through liquid film boundary region，Inert solid particle collides with heat-exchange tube 16 internal face simultaneously、Wash away、Rubbing downs etc. act on，Can effectively remove the dirt adding heat pipe wall face.The addition of inert solid particle adds the nucleus of boiling, enhances nucleateboiling heat transfer, destroys heat transfer boundary layer, enhance the less turbulence of fluid, enhance convection heat transfer' heat-transfer by convection, heat transfer coefficient can be made to improve more than 20%, also reduce the temperature of heat transfer tube wall, it is achieved that gentle evaporation smoothly simultaneously.Vapour, liquid, solid three-phase enter into liquid-solid separator 15 under the promotion of forced circulation pump 11, inert solid particle enters granule storage tank 14 under gravitational and centrifugal forces and returns circulation next time, and vapour, liquid are biphase, is discharged into subsequent processing by upper circular tube 2.
nullEmbodiment 2，First according to predetermined ratio (described inert solid particle is 5% ~ 15% with the volume ratio of stock solution), inert solid particle is disposably joined in granule storage tank 14，Open vacuum pump set 7 to device evacuation，Simultaneously in heater 1 steam inlet enter steam valve，Lower recycle feed pipe 10 is entered after the stock solution metering of room temperature，Under the swabbing action of forced circulation pump 11, enter heater 1 carry out heat exchange，Inert solid particle in granule storage tank 14 passes through the first thick distributor 12 and effect of the second thin distributor 13，Inert solid particle (granule is that size is at 1 ~ 10mm) is evenly distributed in each heat-exchange tube 16，Feed liquid and inert solid particle are under the effect of forced circulation pump 11，Make to be formed vapour in heat-exchange tube 16、Liquid、Solid fluid boiling state，Inert solid particle is constantly through liquid film boundary region，Inert solid particle collides with heat-exchange tube 16 internal face simultaneously、Wash away、Rubbing downs etc. act on，Can effectively remove the dirt adding heat pipe wall face.The addition of inert solid particle adds the nucleus of boiling, enhances nucleateboiling heat transfer, destroys heat transfer boundary layer, enhance the less turbulence of fluid, enhance convection heat transfer' heat-transfer by convection, heat transfer coefficient can be made to improve more than 20%, also reduce the temperature of heat transfer tube wall, it is achieved that gentle evaporation smoothly simultaneously.Vapour, liquid, solid three-phase enter into liquid-solid separator 15 under the promotion of forced circulation pump 11, inert solid particle enters granule storage tank 14 under gravitational and centrifugal forces and returns circulation next time, vapour, liquid are biphase, enter crystallizer 3 by upper circular tube 2, overheated feed liquid carries out flash of steam under the vacuum state of crystallizer 3, and indirect steam discharges system by condensate pump 8 after ascending into secondary steam pipe 4, condenser 5, condensate water pot 6.Concentrate magma and discharge system (going centrifugal separation process) via magma pump 9；
Do not crystallize raw material never to crystallize material outlet and turn again to lower recycle feed pipe 10 and carry out again heater 1 and carry out heat exchange again.
Tradition evaporated crystallization device is in order to ensure feed liquid flow velocity in heat-exchange tube 16 and reduce dirt layer attachment in heat-exchange tube 16, usually use the high-power axial-flow pump of big flow, low lift, its operation energy consumption and maintenance cost and to run noise bigger, this device can fully phase out powerful forced circulation pump 11, reduce equipment investment and operating cost, decrease site area so that it is lower that equipment runs noise.
This device can have good anti-, descaling function to particulate foulings various in vaporising device, crystallization dirt, chemical reaction dirt, corrosion fouling, biofouling etc..
The PLC Automatic Control two kinds controlling to have Non-follow control and man machine interface according to user's requirement of this device.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be regarded as the protection domain of utility model.
Claims (9)
1. a non-scaling heating assembly, it is characterized in that: include heater and the heat-exchange tube being arranged in heater, the feeding end of described heat-exchange tube is connected with lower recycle feed pipe by forced circulation pump, and stock solution is from the addition of lower recycle feed pipe and flows along the feeding end of heat-exchange tube to discharge end under the promotion of forced circulation pump and carries out heat exchange；The discharge end of described heat-exchange tube connects with the feed end of solid-liquid separator, it it is solids exit end bottom described solid-liquid separator, described solids exit end connects with granule storage tank, it is added with inert solid particle in described granule storage tank, described granule storage tank discharge end, by distributor and heat-exchange tube UNICOM, in described inert solid particle is uniformly distributed in heat-exchange tube by distributor and mixes with stock solution.
2. non-scaling heating assembly as claimed in claim 1, it is characterised in that: described distributor includes the first thick distributor and the second thin distributor set gradually, and the described second thin distributor discharge end connects with heat-exchange tube bottom.
3. non-scaling heating assembly as claimed in claim 1 or 2, it is characterised in that: described inert solid particle is any one or the combination of any two kinds in polytetrafluoroethylgranule granule, corundum in granules, glass particle or ceramic particle or the combination of any three kinds or the combination of four kinds.
4. non-scaling heating assembly as claimed in claim 3, it is characterised in that: described inert solid particle is the size granule at 1 ~ 10mm.
5. non-scaling heating assembly as claimed in claim 4, it is characterised in that: described inert solid particle is 5% ~ 15% with the volume ratio of stock solution.
6. non-scaling heating assembly as claimed in claim 5, it is characterised in that: described solid-liquid separator top is provided with gas-liquid discharge end, and described heater is provided with steam inlet and condensation-water drain.
7. an evaporated crystallization device, it includes that non-scaling as claimed in claim 6 heats assembly, additionally include crystallizer, described crystallizer is provided with upper circular tube, described upper circular tube connects with gas-liquid discharge end, described lower recycle feed pipe one end connects with forced circulation pump, and the other end does not crystallizes material outlet with crystallizer and connects, and described crystalliser feet is by magma pump and dense magma material outlet.
8. evaporated crystallization device as claimed in claim 7, it is characterised in that: described crystallizer upper end is connected with condenser by secondary steam pipe, and described condenser connects with condensate water pot, and described condensate water pot connects with vacuum pump set.
9. evaporated crystallization device as claimed in claim 8, it is characterised in that: described condensate water pot outlet is connected with condensate pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620429524.7U CN205759823U (en) | 2016-05-12 | 2016-05-12 | Non-scaling heats assembly, the evaporated crystallization device comprising it |
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| CN201620429524.7U CN205759823U (en) | 2016-05-12 | 2016-05-12 | Non-scaling heats assembly, the evaporated crystallization device comprising it |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833563A (en) * | 2016-05-12 | 2016-08-10 | 江阴市江中设备制造有限公司 | Non-scaling heating assembly and evaporative crystallization device with same |
| CN108398047A (en) * | 2018-02-06 | 2018-08-14 | 孝感广盐华源制盐有限公司 | A kind of antiscale using rare earth porcelain grit to non-strong base solution, descaling method |
-
2016
- 2016-05-12 CN CN201620429524.7U patent/CN205759823U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833563A (en) * | 2016-05-12 | 2016-08-10 | 江阴市江中设备制造有限公司 | Non-scaling heating assembly and evaporative crystallization device with same |
| CN108398047A (en) * | 2018-02-06 | 2018-08-14 | 孝感广盐华源制盐有限公司 | A kind of antiscale using rare earth porcelain grit to non-strong base solution, descaling method |
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