CN112194218A - Device for concentrating and crystallizing by utilizing humidity difference of air - Google Patents
Device for concentrating and crystallizing by utilizing humidity difference of air Download PDFInfo
- Publication number
- CN112194218A CN112194218A CN202010934421.7A CN202010934421A CN112194218A CN 112194218 A CN112194218 A CN 112194218A CN 202010934421 A CN202010934421 A CN 202010934421A CN 112194218 A CN112194218 A CN 112194218A
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- temperature
- concentrating
- humidity difference
- heater
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a device for concentrating and crystallizing by utilizing humidity difference of air, which is characterized by comprising a circulating tank, wherein one output end of the circulating tank is connected with a heater, and one output end of the heater is connected with a high-temperature evaporator. The invention has reasonable structural design, adopts the heat exchanger with wide flow passages, and is matched with the high-temperature concentrator and the flexible blowing filler, so that crystal nuclei are not easy to attach to the surface of the plate in the heat exchange process, the heat exchange efficiency is maintained, and the blockage is also prevented; because the heat exchange part is moved to the outside of the evaporation tower and the high-temperature concentrator and the flexible propelling filler are arranged, the scale deposition period is greatly prolonged, and the operation of the evaporator is more stable; in the face of industrial wastewater with strong corrosivity such as acid and alkali, a high-molecular organic polymer is adopted as an equipment body, so that the corrosion problem can be effectively solved; because the evaporation temperature is low, under certain environment that waste heat can be utilized, hot water at 80 ℃ can be used as a heat source, and the operation cost is greatly reduced.
Description
Technical Field
The invention relates to the technical field of crystallization equipment, in particular to a device for concentrating and crystallizing by utilizing humidity difference of air.
Background
Traditional evaporimeter, for example MVR, multiple-effect etc. evaporimeter are used often can appear corroding, the condition such as jam in complicated industrial waste water, and traditional evaporimeter generally adopts plate type or tubular heat exchanger to heat waste water promptly, because the material is extremely complicated in the waste water, and scaling nature material content is very high usually, forms the crystal nucleus after constantly evaporating concentration in the operation process like substances such as calcium, magnesium, silicon. The crystal nucleus is attached to heat exchange tube (or face) internal surface and the scale deposit, then influences heat exchanger efficiency gently, then can make the heat exchange tube jam seriously, influences the evaporation crystallization device normal operating, and the unable normal operating of stability of equipment, maintenance volume and maintenance cost also highly spend under. Therefore, a novel evaporation device is developed, and the problems can be effectively solved.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a device for concentrating and crystallizing by utilizing the humidity difference of air.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an utilize device of air moisture difference concentration crystallization, includes the circulating tank, one of them output of circulating tank is connected with the heater, one of them output of heater is connected with the high temperature evaporation body, just the bottom output of the high temperature evaporation body is connected with the high temperature concentration body, the top output of the high temperature evaporation body is connected with the low temperature condensation body, the low temperature condensation body is connected with the cooler.
Preferably, one of the input ends of the circulation tank is connected with a water inlet pump, and the water inlet pump is communicated with the circulation tank through a guide pipe.
Preferably, one of the output ends of the circulation tank is connected with one of the input ends of the heater through a warming circulation pump.
Preferably, water distribution nozzles are arranged in the high-temperature evaporation body, the high-temperature concentration body and the low-temperature condensation body, special fillers are arranged in the high-temperature evaporation body and the low-temperature condensation body, flexible fillers are arranged in the high-temperature concentration body, and the special fillers and the flexible fillers are arranged below the water distribution nozzles.
Preferably, one of the output ends of the heater is connected with the water distribution nozzle in the high-temperature evaporator.
Preferably, a two-phase separator is arranged in the high-temperature evaporator, the two-phase separator is positioned below the special filler in the high-temperature evaporator, and the two-phase separator is connected with one of the input ends of the circulating tank.
Preferably, one of the output ends of the circulation tank is connected with a water distribution nozzle in the high-temperature concentrate through a circulation pump, the high-temperature concentrate is connected with a fan, and the output end of the fan is arranged below the flexible filler in the high-temperature concentrate.
Preferably, one of the output ends of the cooler is connected with the water distribution spray head in the low-temperature condensation body, and one of the input ends of the cooler is connected with the bottom of the low-temperature condensation body through a cooling circulating pump.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the heat exchanger with wide flow passage, and is matched with the high-temperature concentrator and the flexible blowing filler, so that the crystal nucleus is not easy to attach to the surface of the plate in the heat exchange process, the heat exchange efficiency is maintained, and the blockage is also prevented;
2. because the heat exchange part is moved to the outside of the evaporation tower and the high-temperature concentrator and the flexible propelling filler are arranged, the scale deposition period is greatly prolonged, and the operation of the evaporator is more stable;
3. in the face of industrial wastewater with strong corrosivity such as acid and alkali, a high-molecular organic polymer is adopted as an equipment body, so that the corrosion problem can be effectively solved;
4. because the evaporation temperature is low, under certain environment that waste heat can be utilized, hot water at 80 ℃ can be used as a heat source, and the operation cost is greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for concentrating crystals by using air humidity difference according to the present invention.
In the figure: 1 water inlet pump, 2 heater, 3 high temperature evaporation body, 4 water distribution nozzle, 5 special filler, 6 two-phase separator, 7 circulating tank, 8 heating circulating pump, 9 high temperature concentration body, 10 flexible filler, 11 blower, 12 low temperature condensation body, 13 cooler, 14 cooling circulating pump.
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.
Referring to fig. 1, an apparatus for concentrating and crystallizing by utilizing humidity difference of air comprises a circulation tank 7, and further, one of the input ends of the circulation tank 7 is connected with a water inlet pump 1, the water inlet pump 1 is communicated with the circulation tank 7 through a flow guide pipe, and the liquid inlet of the circulation tank 7 is realized through the arrangement of the water inlet pump 1.
Wherein, one of them output of circulating tank 7 is connected with heater 2, and further, one of them output of circulating tank 7 is connected with one of them input of heater 2 through heating circulating pump 8, realizes through the setting of heating circulating pump 8 that liquid such as waste water in the circulating tank 7 enters into heater 2 and realizes heating.
Wherein, one output end of the heater 2 is connected with the high-temperature evaporation body 3, the bottom output end of the high-temperature evaporation body 3 is connected with the high-temperature concentration body 9, the top output end of the high-temperature evaporation body 3 is connected with the low-temperature condensation body 12, and the low-temperature condensation body 12 is connected with the cooler 13;
furthermore, water distribution nozzles 4 are arranged in the high-temperature evaporation body 3, the high-temperature concentration body 9 and the low-temperature condensation body 12, special fillers 5 are arranged in the high-temperature evaporation body 3 and the low-temperature condensation body 12, flexible fillers 10 are arranged in the high-temperature concentration body 9, and the special fillers 5 and the flexible fillers 10 are arranged below the water distribution nozzles 4;
furthermore, one of the output ends of the heater 2 is connected with the water distribution nozzle 4 in the high-temperature evaporator 3, so that the heated wastewater is sprayed downwards from the water distribution nozzle 4 in the high-temperature evaporator 3 by the heating of the heater 2;
further, a two-phase separator 6 is arranged in the high-temperature evaporator 3, the two-phase separator 6 is positioned below the special filler 5 in the high-temperature evaporator 3, the two-phase separator 6 is connected with one input end of the circulating tank 7, so that vapor-liquid separation is realized through the two-phase separator 6, the separated liquid enters the circulating tank 7, and the liquid entering the circulating tank 7 is higher than the liquid level of the liquid in the circulating tank 7;
furthermore, one output end of the circulating tank 7 is connected with the water distribution nozzle 4 in the high-temperature concentrated body 9 through a circulating pump, the high-temperature concentrated body 9 is connected with a fan 11, the output end of the fan 11 is arranged below the flexible filler 10 in the high-temperature concentrated body 9, the flexible filler is in a shaking state under the flowing of air through the arrangement of the fan 11, and the crystalline salt in a saturated state is prevented from being enriched on the surface of the filler;
furthermore, one of the output ends of the cooler 13 is connected with the water distribution nozzle 4 in the low-temperature condensation body 12, one of the input ends of the cooler 13 is connected with the bottom of the low-temperature condensation body 12 through the cooling circulation pump 14, the water distribution nozzle 4 in the low-temperature condensation body 12 realizes the water spraying cooling treatment in the low-temperature condensation body 12, and the cooling circulation pump 14 realizes the introduction of the liquefied water into the cooler 13 after the steam and water in the low-temperature condensation body 12 are cooled, thereby realizing the circulation process.
Finally, it is to be noted that: 1. the whole equipment adopts composite organic materials, such as PPH, FRP and the like, so that the materials of the evaporator body caused by high-concentration acid and salt can be effectively prevented in the evaporation concentration process;
2. because the waste water has complex components, in order to prevent corrosion, the traditional evaporator generally adopts titanium materials, dual-phase steel and the like as main materials of equipment, and the manufacturing cost is relatively high, while the evaporator main body can adopt composite organic materials, the price is lower than that of metal, and the equipment investment and manufacturing cost are saved.
The invention can be illustrated by the following operating modes:
the waste liquid enters a circulating tank 7 through a water inlet pump 1, is pumped into a heater 2 through a heating circulating pump 8, is heated to 80 ℃ and then enters a high-temperature evaporation body 3, reversely contacts with air in the high-temperature evaporation body 3, moisture in the waste liquid is transferred to the air and takes away heat, the moisture content in the waste liquid is reduced, and then the waste liquid enters a high-temperature concentration body 9 for further concentration. The flexible packing 10 is arranged in the high-temperature concentrated body 9, and because air is continuously blown into the tower bottom through the fan 11, the flexible packing 10 is in a shaking state under the flowing of the air, and the crystalline salt in a saturated state is prevented from being enriched on the surface of the packing. Continuously concentrating to reach a saturated state, and discharging to solid-liquid separation equipment such as an existing centrifugal machine;
secondly, the moisture content in the air is continuously increased after passing through the high-temperature concentration body 9 and the high-temperature evaporation body 3, finally, the air enters the low-temperature condensation body 12 in a saturated state, a certain amount of condensate which is sprayed downwards through the water distribution spray head 4 is stored in the low-temperature condensation body 12, the damp and hot air is cooled by the condensate, so that the moisture in the gas phase is converted into liquid, the liquid is discharged to the outside of the system through the cooling circulating pump 14 after being formed, the temperature of the condensate can be continuously increased in the circulating process, and the temperature of the condensate is reduced by the cooler to maintain the temperature of the condensate at about 30 ℃.
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 (8)
1. The utility model provides an utilize device of air moisture difference concentration crystallization, its characterized in that, includes circulating tank (7), one of them output of circulating tank (7) is connected with heater (2), one of them output of heater (2) is connected with high temperature evaporation body (3), just the bottom output of high temperature evaporation body (3) is connected with high temperature concentration body (9), the top output of high temperature evaporation body (3) is connected with low temperature condensation body (12), low temperature condensation body (12) are connected with cooler (13).
2. The device for concentrating and crystallizing by utilizing air humidity difference as claimed in claim 1, wherein a water inlet pump (1) is connected to one of the input ends of the circulating tank (7), and the water inlet pump (1) is communicated with the circulating tank (7) through a flow guide pipe.
3. The device for concentrating and crystallizing crystals by utilizing air humidity difference as claimed in claim 1, wherein one of the output ends of the circulation tank (7) is connected with one of the input ends of the heater (2) through a warming circulation pump (8).
4. The device for concentration and crystallization by utilizing air humidity difference according to claim 1, wherein water distribution nozzles (4) are arranged in the high-temperature evaporator (3), the high-temperature concentrator (9) and the low-temperature condenser (12), and special packing (5) is arranged in the high-temperature evaporator (3) and the low-temperature condenser (12), flexible packing (10) is arranged in the high-temperature concentrator (9), and the special packing (5) and the flexible packing (10) are arranged below the water distribution nozzles (4).
5. The device for concentration and crystallization by air humidity difference according to claim 4, characterized in that one of the output ends of the heater (2) is connected with the water distribution nozzle (4) in the high temperature evaporation body (3).
6. An apparatus for concentration and crystallization by utilizing air humidity difference as claimed in claim 4, characterized in that a two-phase separator (6) is arranged in the high temperature evaporator (3), and the two-phase separator (6) is positioned below the special packing (5) in the high temperature evaporator (3), and the two-phase separator (6) is connected with one of the input ends of the circulating tank (7).
7. The device for concentrating and crystallizing the air by utilizing the humidity difference as claimed in claim 4, wherein one output end of the circulation tank (7) is connected with a water distribution nozzle (4) in the high-temperature concentrating body (9) through a circulation pump, a fan (11) is connected to the high-temperature concentrating body (9), and the output end of the fan (11) is arranged below the flexible packing (10) in the high-temperature concentrating body (9).
8. An apparatus for concentration and crystallization by utilizing air humidity difference according to claim 4, characterized in that one of the output ends of the cooler (13) is connected with the water distribution nozzle (4) in the low temperature condensation body (12), and one of the input ends of the cooler (13) is connected with the bottom of the low temperature condensation body (12) through a temperature reduction circulating pump (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010934421.7A CN112194218A (en) | 2020-09-08 | 2020-09-08 | Device for concentrating and crystallizing by utilizing humidity difference of air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010934421.7A CN112194218A (en) | 2020-09-08 | 2020-09-08 | Device for concentrating and crystallizing by utilizing humidity difference of air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112194218A true CN112194218A (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010934421.7A Pending CN112194218A (en) | 2020-09-08 | 2020-09-08 | Device for concentrating and crystallizing by utilizing humidity difference of air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112194218A (en) |
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2020
- 2020-09-08 CN CN202010934421.7A patent/CN112194218A/en active Pending
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