CN110550682B - Small-size waste water concentration system - Google Patents
Small-size waste water concentration system Download PDFInfo
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- CN110550682B CN110550682B CN201810542260.XA CN201810542260A CN110550682B CN 110550682 B CN110550682 B CN 110550682B CN 201810542260 A CN201810542260 A CN 201810542260A CN 110550682 B CN110550682 B CN 110550682B
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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
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a small-sized waste water concentration system, which takes an air source heat pump system as a heat source, uses heated circulating materials to heat fog-shaped air bubbles generated by a turbine bubbler, the air bubbles are gradually heated, broken and enlarged, and because the saturated moisture content of air at 70 ℃ is more than 10 times of that at 20 ℃, the corresponding relative humidity becomes low in the concentration process, water molecules in the materials escape into the air bubbles, the corresponding steam partial pressure becomes large, and the materials continuously rise to a separation section to separate liquid feed liquid carried by machinery, and the water is carried out in the form of saturated wet steam, thereby achieving the purpose of evaporation concentration. Therefore, the concentration device formed by the system has small volume, low investment, convenient transportation, simple and convenient operation and is very suitable for the wastewater treatment of small and medium-sized enterprises.
Description
Technical Field
The invention relates to a concentration system, in particular to a low-temperature air thermal evaporation concentration system.
Background
The industrial wastewater treatment market scale of China is very large, and the wastewater treatment scheme and the process method are widely concerned. At present, the waste water treatment mainly comprises a thermal method and a membrane method, wherein the thermal method also comprises evaporation concentration technologies such as MEE, MVC, TVR, MVR and the like, the device formed by the technologies has large treatment capacity, high investment cost, complex process flow and high operation difficulty, and is generally suitable for large-scale enterprises, and a large batch of small and medium-sized enterprises in China generate small amount of waste water, so that the research on a small-scale and modular evaporation concentration system is required to be enhanced.
SUMMARY OF THE PATENT FOR INVENTION
The invention aims to provide a small-sized wastewater concentration system, which solves the strong requirements of small and medium-sized enterprises on wastewater treatment technology and devices, and has the advantages of small volume, low investment, convenient transportation, simple and convenient operation and the like.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to a small-sized waste water concentration system, which takes an air source heat pump system as a heat source, uses a heated circulating material to heat mist air bubbles generated by a turbine bubbler, the air bubbles are gradually heated, broken and enlarged, and the air saturated moisture content at 70 ℃ is more than 10 times of that at 20 ℃ according to air physical properties, so that the corresponding relative humidity becomes low in the process, water molecules in the material escape into the air bubbles, the corresponding partial pressure of steam becomes large, the material continuously rises to a separation section to separate liquid feed liquid carried by machinery, and the moisture is brought out in the form of saturated wet steam, thereby achieving the purpose of evaporation and concentration.
Compared with the prior art, the invention has the following beneficial effects:
the small-sized wastewater concentration system provided by the invention solves the strong requirements of small and medium-sized enterprises on wastewater treatment technology and devices, and has the advantages of small volume, low investment, convenience in transportation, simplicity in operation, convenience and the like. The system operates under normal pressure, does not belong to the range of pressure vessels, does not need vacuum pumping equipment, is easy to operate, and has good safety and reliability. Moreover, only the compressor and the turbine bubbler consume energy, and the operation cost is low. The turbine bubbler enables air and materials to be uniformly mixed, and is large in specific surface area and good in evaporation effect. The heat circulation system recovers sensible heat and latent heat of the wet air, and the energy utilization efficiency is high.
Drawings
FIG. 1 is a schematic view showing the construction of a small-sized wastewater concentration system according to the present invention.
FIG. 2 is a schematic view of the structure of the vaporization separator of the present invention.
Reference numerals:
1. a turbine bubbler, 2, a pressure display, 3, a temperature display, 4, an evaporation separator, 5, a heat regenerator, 6, an evaporator, 7, a gas-liquid separator, 8, a compressor, 9, a condenser, 10 and a pressure reducing valve;
41. an evaporation section, 42, a baffle plate, 43, a separation section, 4a, a wet air outlet pipe, 4b, a circulating material outlet pipe, 4c, a circulating material inlet pipe, 4d, a concentrated material liquid outlet pipe, 4e and a baffle plate pipe hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
A small-sized waste water concentration system is shown in figure 1 and comprises a turbine bubbler 1, a pressure display 2, a temperature display 3, an evaporation separator 4, a heat regenerator 5, an evaporator 6, a gas-liquid separator 7, a compressor 8, a condenser 9, a pressure reducing valve 10, a plurality of pipelines, a switch and the like.
The evaporator 6, the gas-liquid separator 7, the compressor 8, the condenser 9 and the pressure reducing valve 10 form a heat circulation loop to provide a heat source for the concentration system, wherein the evaporator 6 absorbs sensible heat and latent heat in hot and humid air, and the energy utilization rate of the system is improved.
The turbine bubbler 1 comprises a turbine water pump and an air pipeline, wherein an air inlet is formed in the impeller of the turbine water pump, air enters the impeller from the air inlet and is rotated by the impeller to generate fog-like bubbles, and the fog-like bubbles are uniformly distributed, small in size, large in specific surface area and good in evaporation effect.
As shown in fig. 2, the evaporation separator 4 is divided into an evaporation section 41 and a separation section 43, a baffle plate 42 is further installed at the bottom of the evaporation separator, the baffle plate 42 is a rotating body with a vertical lower part and a horn-shaped upper part, the baffle plate extends out of the liquid level for a certain height, and baffle plate pipe holes 4e are arranged on two sides of the horn-shaped upper part; the two sides of the evaporation separator 4 are respectively provided with a material circulation outlet pipe 4b and a concentrated material liquid outlet pipe 4d, the material circulation outlet pipe 4b is communicated with a normal-temperature material inlet pipeline and then communicated with the condenser 9, the outlet end of the condenser 9 is connected with the inlet end of the turbine bubbler 1, and normal-temperature materials entering from the normal-temperature material inlet pipeline and circulating materials entering from the material circulation outlet pipe 4b are continuously heated in the condenser 9. The top of the separation section 43 is provided with a humid air outlet pipe 4a communicating with the inlet end of the regenerator 5.
The material heated in the condenser 9 enters the turbine bubbler 1 through a pipeline, then enters the evaporation section 41 from the circulating material inlet pipe 4c through the conveying of the turbine bubbler 1, most of the material is concentrated to form concentrated material liquid, the concentrated material liquid is discharged out of the system from the concentrated material liquid outlet pipe, the other small part of the material is changed to the back through the baffle plate pipe hole 4e and is discharged out of the evaporation separator through the circulating material outlet pipe 4b, and the material enters the condenser again to start the next circulation process.
The turbine bubbler 1 is provided with an air inlet at the inlet of an impeller, air generates fog-like bubbles through the rotation of the impeller, and the bubbles are uniformly distributed, small in size, large in specific surface area and good in evaporation effect.
The circulating material at the outlet of the turbine bubbler 1 enters the evaporation section 41 through the circulating material inlet pipe 4c, the air is turned through the baffle plate pipe hole 4e and then enters the separation section, the circulating material is discharged out of the evaporation separator through the circulating material outlet pipe 4b, the air bubbles can be effectively prevented from being brought into the condenser 9 by the circulating material, the condensation of the air bubbles in the condenser 9 and the generation of bridging liquid are avoided, and the efficient heat exchange of the condenser 9 is ensured.
The inlet end of the heat regenerator 5 is respectively communicated with an outside air inlet pipe and a wet air outlet pipe 4a of the concentration separator 4, and the outlet end of the heat regenerator 5 is respectively communicated with an air inlet at the impeller of the turbine water pump and a gas inlet end of the evaporator 6 through pipelines.
The high-temperature wet air entering the regenerator 5 from the wet air outlet pipe 4a is mixed with the normal-temperature air entering from the outside in the regenerator, the normal-temperature air entering from the outside is preheated, the sensible heat of the high-temperature wet air is recovered, and the energy utilization efficiency is improved.
The wet air with heat recovered by the heat regenerator 5 and the external air preheated by the heat regenerator 5 are partially fed into the evaporator 6 through an air pipeline, the evaporator 6 further recovers partial sensible heat and latent heat in the air, water vapor in the air is condensed and discharged out of the system in the form of condensed water, the cooled air further reduces moisture through a gas-liquid separator, the cooled air is fed into a compressor to form high-temperature and high-pressure gas, the high-temperature and high-pressure gas is fed into a condenser 9 to heat materials in the condenser 9, the gas temperature and the pressure are both reduced, the gas is decompressed through a decompression valve 10 and then fed into the evaporator 6 to form a thermal circulation loop, and a heat source is provided for circulating material concentration.
Most of the wet air which is recovered by the heat regenerator 5 and the external air which is preheated by the heat regenerator 5 enter the evaporation separator 4 through the conveying of the turbine bubbler 1, the generated fog-shaped bubbles are uniformly mixed with the circulating material and are heated by the circulating material in the evaporation section 41, the bubbles are gradually heated, crushed and grown up, the corresponding relative humidity of the air bubbles becomes low in the process, water molecules in the material escape into the air bubbles and correspondingly increase the partial pressure of steam, finally, liquid feed liquid carried by machinery is separated out in the separation section, the moisture is brought out in the form of saturated wet steam, the purpose of evaporation concentration is achieved, and the concentrated material is discharged from the concentrated material liquid outlet pipe 4 d.
The pressure display table 2 is arranged on an outlet pipeline of the turbine bubbler, and the pressure value is 0.3-0.4 Mpa.
The temperature display table 3 is arranged at the bottom of the evaporation separator, and the temperature value is 70-80 ℃.
When in work, the method comprises the following steps:
a. air circulation: the turbine bubbler 1 is opened, negative pressure is generated, normal temperature outside air (20 ℃) is sucked in through an air pipeline and a heat regenerator 5 which are connected, the normal temperature outside air enters an opening at a turbine pump impeller through a pipeline after being preheated by high temperature wet air in the heat regenerator 5, is fully mixed with circulating materials entering from a circulating material outlet pipe and a normal temperature material port pipe in the turbine bubbler 1, is changed into mist air bubbles which are uniformly distributed in the circulating materials, enters an evaporation separator 4 through a circulating material inlet pipe 4c, the temperature of air bubbles in an evaporation section 41 is gradually increased, absorbing material water molecules are changed into high humidity hot air escaping liquid level when the air bubbles are crushed and grown, liquid feed liquid carried by machinery is separated out in a separation section 43 by means of gravity, enters the heat regenerator 5 in a saturated wet air mode, recovers a part of sensible heat, enters a condenser 6 again, recovers part of sensible heat and latent heat of the wet air, and finally exits the system in the form of cool air and condensed water.
b. Material circulation: the normal temperature material inlet pipe is communicated with a circulating material outlet pipe 4b of the evaporation separator and then communicated with an inlet end of the condenser 9, the normal temperature material and the circulating material are mixed and then enter the condenser 9 to be heated to 70-80 ℃, and then are conveyed into the evaporation separator 4 through the turbine bubbler 1, and part of the normal temperature material and the circulating material are discharged out of the system from a concentrated material liquid discharge pipe 4d in a concentrated material liquid form; the other part rises along the space in the baffle plate 42, water molecules move to heated air in the process to achieve the purpose of evaporation concentration, the flow direction of the circulating feed liquid is changed after passing through the pore 4e of the baffle plate, redundant air bubbles carried in the feed liquid are discharged, and the circulating feed is taken out by the circulating feed outlet pipe 4b and continuously enters the circulating process.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A small-size waste water concentration system which characterized in that: comprises a concentration separator, a turbine bubbler and a heat cycle system;
the concentration separator comprises an evaporation section and a separation section which are arranged from bottom to top, and a circulating material inlet pipe is arranged at the bottom of the evaporation section and is communicated with an outlet of the turbine bubbler; a circulating material outlet pipe and a concentrated material liquid outlet pipe are respectively arranged on two sides of the evaporation section, and a gas outlet pipe is arranged at the top of the separation section;
the turbine bubbler comprises a turbine water pump, and an air inlet is formed in the impeller of the turbine water pump;
the heat cycle system comprises a compressor, a condenser, a pressure reducing valve, an evaporator and a gas-liquid separator which are sequentially connected into a loop, and further comprises a heat regenerator, wherein the inlet end of the heat regenerator is communicated with an external air inlet pipe and a wet air outlet pipe of the concentration separator, the outlet end of the heat regenerator is respectively communicated with a hole in the impeller of the turbine water pump, the gas inlet end of the evaporator is communicated through a pipeline, high-temperature wet air entering the heat regenerator from the wet air outlet pipe is mixed with normal-temperature air entering from the outside in the heat regenerator, the inlet end of the condenser is communicated with a circulating material outlet pipe and a normal-temperature material inlet pipe, and the outlet end of the condenser is connected with the inlet end of the turbine bubbler.
2. The small scale wastewater concentration system according to claim 1, wherein: the concentration separator also comprises a baffle plate which is a rotating body with a vertical lower part and a horn-shaped upper part and is arranged at the bottom of the concentration separator, the baffle plate extends out of the liquid level for a certain height, and baffle plate pipe holes are arranged on two sides of the upper part of the baffle plate.
3. The small scale wastewater concentration system according to claim 1, wherein: and a pressure display is arranged on a pipeline connecting the turbine bubbler and the concentration separator.
4. The small scale wastewater concentration system according to claim 1, wherein: and a thermometer is arranged at the evaporation section at the bottom of the concentration separator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810542260.XA CN110550682B (en) | 2018-05-30 | 2018-05-30 | Small-size waste water concentration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542260.XA CN110550682B (en) | 2018-05-30 | 2018-05-30 | Small-size waste water concentration system |
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| CN110550682A CN110550682A (en) | 2019-12-10 |
| CN110550682B true CN110550682B (en) | 2022-04-12 |
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| CN112451982B (en) * | 2020-12-02 | 2021-08-13 | 复旦大学 | Evaporation equipment for removing organic solvent in fluid |
| KR102254574B1 (en) * | 2021-02-01 | 2021-05-20 | 박연희 | Compact one-stop extraction and concentration apparatus |
| KR102302082B1 (en) * | 2021-02-01 | 2021-09-13 | 박연희 | Electric concentrated extraction apparatus capable of rapid extraction and concentration |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356046A (en) * | 2009-02-12 | 2012-02-15 | 中心地带科技股份有限公司 | Compact wastewater concentrator using waste heat |
| CN103874534A (en) * | 2011-08-12 | 2014-06-18 | Hyd癌症研究和药物开发有限公司 | Process and apparatus for the separation of the components of a liquid mixture |
| WO2015110760A1 (en) * | 2014-01-24 | 2015-07-30 | Starklab | Facility and method for treating water pumped in a natural environment by evaporation/condensation |
| CN106673101A (en) * | 2016-12-28 | 2017-05-17 | 常州大学 | Deep treatment method and system for high-salinity desulfurization wastewater |
| CN107572625A (en) * | 2017-09-27 | 2018-01-12 | 范吉 | The evaporation and concentration processing unit and processing method of a kind of waste water/waste liquid |
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- 2018-05-30 CN CN201810542260.XA patent/CN110550682B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356046A (en) * | 2009-02-12 | 2012-02-15 | 中心地带科技股份有限公司 | Compact wastewater concentrator using waste heat |
| CN103874534A (en) * | 2011-08-12 | 2014-06-18 | Hyd癌症研究和药物开发有限公司 | Process and apparatus for the separation of the components of a liquid mixture |
| WO2015110760A1 (en) * | 2014-01-24 | 2015-07-30 | Starklab | Facility and method for treating water pumped in a natural environment by evaporation/condensation |
| CN106673101A (en) * | 2016-12-28 | 2017-05-17 | 常州大学 | Deep treatment method and system for high-salinity desulfurization wastewater |
| CN107572625A (en) * | 2017-09-27 | 2018-01-12 | 范吉 | The evaporation and concentration processing unit and processing method of a kind of waste water/waste liquid |
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