CN205347084U - High concentration contains energy -conserving processing system of salt waste water organically - Google Patents
High concentration contains energy -conserving processing system of salt waste water organically Download PDFInfo
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- CN205347084U CN205347084U CN201521102616.6U CN201521102616U CN205347084U CN 205347084 U CN205347084 U CN 205347084U CN 201521102616 U CN201521102616 U CN 201521102616U CN 205347084 U CN205347084 U CN 205347084U
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Abstract
The utility model discloses a high concentration contains energy -conserving processing system of salt waste water organically, including energy conversion device and a steam generator and two steam generator of connection at the energy conversion device both ends, a steam generator's gas outlet links to each other with the import of energy conversion device's thermal medium, a steam generator's liquid outlet and the import of the 2nd steam generator's liquid link to each other. Waste water reacts in a steam generator, obtains high temperature and goes out water and high temperature waste gas. High temperature waste gas passes through energy conversion device, turns into mechanical energy with the internal energy of waste gas, and mechanical energy turns into heat energy and reuse again. High temperature goes out the heat energy heating back that water was changed into by the waste gas internal energy through heat transfer cooling back, the evaporation crystallization, and the salt of production is sold or is recycled, during the low temperature steam of production flows into energy conversion device, as the receptor of waste gas internal energy.
Description
Technical field
This utility model relates to a kind of field of waste water treatment and energy-saving and emission-reduction field, is specifically related to the energy-efficient treatment system of the organic brine waste of a kind of high concentration.
Background technology
Organic chemical waste water yield is big, has the features such as high salt, high COD, high chroma, and intractability is big.Wet oxidation is a kind of being widely used and processing method that treatment effeciency is high.But processing procedure produces High Temperature High Pressure and there is corrosive waste gas.Usually by discharge after tail gas absorption, the heat energy being with in tail gas and the interior loss of energy, cause waste.
By the waste water after processing, salinity is high, it is impossible to directly discharge or entrance urban sewage treatment system, it is necessary to carry out desalination.Conventional employing concentration method, the salt-free water obtained is entered biochemistry or directly discharges, and the inorganic salt obtained can reuse or sale.Concentration heating needs a large amount of raw steam, produces the water vapour that big amount temperature is higher simultaneously, and energy expenditure is big, costly.In prior art, adopting the concentration of MVR system, heated further by the steam produced with compressor in concentration process, the steam of the higher temperature obtained can replace raw steam heated waste water.But compressor uses electrical energy drive, power consumption is big, costly.
Based on the defect of above-mentioned prior art, this utility model, by studying, obtains the energy-efficient treatment system of the organic brine waste of a kind of high concentration, while recycling treatment waste water, can recycle energy to greatest extent, reduce processing cost.
Summary of the invention
The utility model discloses the energy-efficient treatment system of the organic brine waste of a kind of high concentration.By this utility model, the energy produced in wastewater treatment process is utilized.
A kind of energy-efficient treatment system of the organic brine waste of high concentration, it is characterised in that: described energy-efficient treatment system includes energy conversion device and is connected to the first steam raising plant and second steam raising plant at energy conversion device two ends；The high-temperature gas outlet of the first steam raising plant is connected with the thermal medium inlet of energy conversion device；The liquid outlet of the first steam raising plant and the liquid-inlet of the second steam raising plant are connected.
The energy-efficient treatment system of the organic brine waste of above-mentioned high concentration, runs operation by following steps:
(1) the organic brine waste of high concentration is heated by the first steam raising plant and is processed, and obtains High Temperature High Pressure waste gas and hot salt brine.
(2) the High Temperature High Pressure waste gas that step (1) obtains passes through energy conversion device, and the energy after conversion is transferred in the second steam raising plant.
(3) enter the second steam raising plant after the hot salt brine cooling that step (1) obtains, drive the condensing crystallizing of saline with energy transformed in step (2), obtain inorganic salt.
Preferably, the first steam raising plant includes the heat exchanger with waste water inlet, is connected with heat exchanger and with the air and liquid mixer of gas feed and liquid-inlet and the steam generator that is connected with air and liquid mixer.
In a specific embodiment, the first steam raising plant includes steam generator 11 and heat exchanger 12 and air and liquid mixer 14.Air and liquid mixer 14 is provided with gas feed, liquid-inlet and material outlet, the material outlet of air and liquid mixer is connected with the charging aperture of steam generator 11 by pipeline, steam generator 11 is provided with gas outlet and liquid outlet, gas outlet is connected with the thermal medium inlet of energy conversion device by pipeline, liquid outlet is connected with the thermal medium inlet of heat exchanger 12 by pipeline, liquid flows into the second steam raising plant by pipeline after being flowed out by the cold media outlet of heat exchanger 12.Steam generator 11 in this utility model is can be wet oxidation reaction still.
Preferably, energy conversion device includes actuating device and turbine；The high-temperature gas outlet of turbine and the first steam raising plant is connected.
In a specific embodiment, energy conversion device includes turbine 21 and actuating device 22.Turbine is provided with gas feed and gas outlet, liquid outlet.The energy produced is transferred to the second steam raising plant by actuating device.
Preferably, second steam raising plant includes the heat exchanger being connected with the liquid outlet of the first steam raising plant, the crystallizer being connected with exchanger heat media outlet, and the segregation apparatus being connected with crystallizer heavy out, the compressor that is connected with crystallizer light phase export；Compressor is connected with energy conversion device.
In a specific embodiment, the second steam raising plant includes compressor 31, heat exchanger 32, crystallizing evaporator 33 and segregation apparatus 34.Compressor 31 is provided with energy acceptance end and gas feed, gas outlet and liquid outlet.Heat exchanger 32 has cold media outlet, cold medium entrance, thermal medium inlet and thermal medium outlet.The thermal medium inlet of heat exchanger 32 is connected with the gas outlet of compressor 31；Cold media outlet is connected with drainage system；The cold media outlet of the heat exchanger 12 of cold medium entrance and the first steam raising plant is connected；Thermal medium outlet is connected with crystallizing evaporator 33 import.The light phase export of crystallizing evaporator 33 is connected with the gas feed of compressor 31 by pipeline, the inlet communication of the heavy out of crystallizing evaporator 33 and segregation apparatus 34.Second steam raising plant can also include the inorganic salt packing apparatus being connected with the solid-phase outlet of segregation apparatus 34.The liquid outlet of segregation apparatus 34 is connected with the cold medium entrance of heat exchanger 32.
As preferably, the first steam raising plant also including heater 13, is located between heat exchanger 12 and air and liquid mixer 14.Heater 13 is with heat-conducting oil heating system.
Also including decompressor in first steam raising plant, a decompressor can be located on the pipeline that steam generator gas outlet is connected with energy conversion device.Another decompressor is located on the pipeline that steam generator liquid outlet is connected with heat exchanger 12.
Also including exhaust gas processing device in energy conversion device, the gas feed of exhaust treatment system is connected with turbine 21 gas outlet, and the gas outlet of exhaust treatment system is connected with air.
Further preferably, the first steam raising plant also includes heat exchanger 17.Heat exchanger 17 is connected on before heat exchanger 12, the thermal medium outlet of heat exchanger 17 connects with the cold medium entrance of heat exchanger 12, the thermal medium inlet of heat exchanger 17 connects with the gas outlet of turbine 21, and the cold media outlet of heat exchanger 17 is connected with the gas feed of exhaust gas processing device 23.
Further preferably, the gas outlet of the compressor 31 of the second steam raising plant is connected with the thermal medium inlet of the heat exchanger 17 of the first steam raising plant.
It is preferred that, the second steam raising plant also includes after-treatment device, the import of after-treatment device is connected with the cold media outlet of heat exchanger 12, and the outlet of after-treatment device connects with the cold medium entrance of heat exchanger 32.
Adopt the method that the organic brine waste of high concentration is processed by above-mentioned energy-efficient treatment system: the organic brine waste of high concentration reacts in the first steam raising plant, obtains high-temp waste gas and high-temperature water outlet；High-temp waste gas enters energy conversion device, and in energy conversion device, the interior of high-temp waste gas can be converted into heat, supplies the water inlet of the second steam raising plant；High-temperature water outlet flows into the second steam raising plant by heat exchange after being lowered the temperature, after the energy heats that can be changed in high-temp waste gas, evaporative crystallization, the Low Temperature Steam of generation flows in energy conversion device, as the receptor of energy in waste gas.
Specifically can be implemented by following steps:
(1) salt-containing organic wastewater is mixed into wet oxidation reaction still, high-temperature high-voltage reaction with gas after being heated by heat exchanger, and the waste gas produced in course of reaction enters turbine direct-drive compressor, and reaction water outlet enters MVR system；
(2) waste gas expansion work in the turbine system of turbo-compressor that step (1) obtains, the part energy obtained is converted into mechanical energy, is transferred to the compressibility of turbo-compressor, the Low Temperature Steam acting that MVR system is produced, and obtains high-temperature steam.
(3) the saliferous water outlet obtained in step (1) enters MVR system, and the Low Temperature Steam that evaporative crystallization produces enters the compressibility of the turbo-compressor described in step (2), by compressing intensification post-heating MVR water inlet.
Heat exchanger is passed through in the reaction water outlet that step (1) is obtained by reacting, and the water inlet with step (1) carries out heat exchange, temperature be down to MVR vapo(u)rization system temperature required or temperature required following after enter MVR, evaporation and concentration, obtain inorganic salt and Low Temperature Steam.
Time in step (3) by compressing the steam that obtains for heating MVR water inlet, also having part more than needed, residue steam can be sold or water inlet as wet oxidation adds thermal medium.
Also including after-treatment device in second steam raising plant, after-treatment device is arranged between the liquid outlet of the first steam raising plant and the liquid-inlet of the second steam raising plant.After the hot salt brine cooling obtained in step (1), it is evaporated crystallization again through post processing.Described post processing is one or more in neutralization, flocculation, filtration, absorption.It is preferred that, the hot salt brine in step (1) is cooled to more than below evaporating temperature, crystallization temperature.Actual temp with the difference of the kind of inorganic salt, concentration and vapo(u)rization system condition in hot salt brine and different.
The water inlet of present treatment system is organic brine waste, and the reaction that waste water occurs in steam generator 11 is exothermic reaction.So, system needs heater 13 at the beginning of running, and after system is run continuously, heater 13 can cut out or intermittently starting.
Contrast prior art, this utility model has the following characteristics that
(1) it is possible not only to wastewater treatment to qualified discharge by present treatment system, also can by the resource recycling in waste water；
(2) energy produced in wastewater treatment process is utilized by this system to greatest extent, reduces the discharge capacity of waste gas, reduces greenhouse gases and the discharge capacity of the gas causing acid rain；
(3) native system takes full advantage of the heat energy in waste gas and interior energy, decreases power consumption.
(4) Waste Water Treatment and heat recovery system are organically combined by native system, simple to operate, and waste water treatment efficiency is high.
(5), when native system runs continuously, with little need for additionally supplying energy, operating cost is low.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the energy-efficient treatment system of the organic brine waste of a kind of high concentration described in the utility model.
In figure, 11 is wet oxidation reaction still, and 13 is heater, and 12,17,32 is heat exchanger, and 14 is air and liquid mixer, and 21 is turbine, and 22 is actuating device, and 31 is compressor, and 33 is crystallizer, and 34 is centrifuge.
Detailed description of the invention
As it is shown in figure 1, the energy-efficient treatment system of the organic brine waste of a kind of high concentration includes energy conversion device and is connected to the first steam raising plant and second steam raising plant at its two ends.
First steam raising plant is with gas inlet and outlet and liquid entrance.After liquid enters the first steam raising plant, air and liquid mixer 14 is passed through with the gases after sequentially passing through heat exchanger 17,12 and heater 13, material after mix homogeneously enters in wet oxidation still 11, and the gas outlet of wet oxidation still 11 is connected with the thermal medium inlet of energy conversion device, liquid outlet is connected with the thermal medium inlet of heat exchanger 12.The cold media outlet of energy conversion device is connected with the thermal medium inlet of heat exchanger 17, and gas flows out from cold media outlet after lowering the temperature in heat exchanger 17, enters exhaust treatment system.The water outlet of wet oxidation still is flowed out from cold media outlet after heat exchanger 12 is lowered the temperature, and flows to the second steam raising plant.
Energy conversion device includes the turbine 21 and the actuating device 22 that are sequentially connected in series.The high-temperature gas flowed into from steam raising plant does work turbine 21, and the mechanical energy of generation is transferred in the second steam raising plant by actuating device 22.
Second steam raising plant includes the heat exchanger 32 with liquid-inlet, the crystallizer 33 connected with heat exchanger 32, the compressor 31 being connected with the gas outlet of crystallizer, the centrifuge 34 being connected with the liquid outlet of crystallizer.The cold medium water outlet of heat exchanger 12 flows into from the cold medium entrance of heat exchanger 32, flows out from thermal medium outlet after heated, flows into crystallizer 33 and carries out crystallization, obtains gas and solidliquid mixture.Gas flows into compressor 31 from the gas outlet of crystallizer and, after compression heating, is flowed out from the thermal medium outlet of compressor, flow to the thermal medium inlet of heat exchanger 32；Solidliquid mixture flows out from heavy out, enters centrifuge 34, separates and obtains solid and liquid, and solid proceeds to packing apparatus, the cold medium entrance of liquid inflow heat exchanger 32.
It is as follows that above-mentioned process system is embodied as operation:
After waste water passes sequentially through heat exchanger 17,12 and heater 13, enter air and liquid mixer 14 with the gases, after mix homogeneously, enter the exothermic reaction carrying out High Temperature High Pressure in wet oxidation reaction still 11 by a certain percentage.
Course of reaction in wet oxidation reaction still 11 produces waste gas, waste gas does not contain only the gases such as oxygen air, ammonia, oxysulfide, nitrogen oxides, also have steam, with amount of heat.Waste gas passes into expansion work in turbine 21, and the mechanical energy obtained promotes compressor to air work in compressor so that it is temperature raises, and the gas after intensification enters after adding thermal medium in heat exchanger 32, is condensed into liquid and goes reuse.
In wet oxidation reaction still 11, reacted leaving water temperature is high, water outlet is passed into heated waste water in heat exchanger 12, after own temperature reduces, inflow heat exchanger 32 heats to evaporative crystallization temperature, enter crystallizer 33 crystallization, obtain water at low temperature steam and solid-liquid mixed liquor, the K cryogenic treatment liquid going heating heat exchanger 21 to flow out again after water at low temperature steam is heated in compressor 31.The solid-liquid mixed liquor that crystallizer flows out is separated by centrifuge 34, sells or application after the solid packing obtained, and the cryogenic liquid that the liquid obtained flows out with heat exchanger 12 mixes.
Claims (7)
1. the energy-efficient treatment system of the organic brine waste of high concentration, it is characterised in that: described energy-efficient treatment system includes energy conversion device and is connected to the first steam raising plant and second steam raising plant at energy conversion device two ends；The high-temperature gas outlet of the first steam raising plant is connected with the thermal medium inlet of energy conversion device；The liquid outlet of the first steam raising plant and the liquid-inlet of the second steam raising plant are connected.
2. the energy-efficient treatment system of the organic brine waste of high concentration as claimed in claim 1, it is characterised in that: the first steam raising plant includes the heat exchanger with waste water inlet, be connected with heat exchanger and with the air and liquid mixer of gas feed and liquid-inlet and the steam generator that is connected with air and liquid mixer.
3. the energy-efficient treatment system of the organic brine waste of high concentration as claimed in claim 2, it is characterised in that: being provided with heater between heat exchanger and air and liquid mixer, heater is with heat-conducting oil heating system.
4. the energy-efficient treatment system of the organic brine waste of high concentration as claimed in claim 1, it is characterised in that: energy conversion device includes actuating device and turbine；The high-temperature gas outlet of turbine and the first steam raising plant is connected.
5. the energy-efficient treatment system of the organic brine waste of high concentration as claimed in claim 1, it is characterized in that: the second steam raising plant includes the heat exchanger being connected with the liquid outlet of the first steam raising plant, the crystallizer being connected with exchanger heat media outlet, and the segregation apparatus being connected with crystallizer heavy out, the compressor that is connected with crystallizer light phase export；Compressor is connected with energy conversion device.
6. the energy-efficient treatment system of the organic brine waste of high concentration as claimed in claim 5, it is characterised in that: the second steam raising plant also includes the inorganic salt packing apparatus being connected with segregation apparatus solid-phase outlet.
7. the energy-efficient treatment system of the organic brine waste of high concentration as claimed in claim 1, it is characterised in that: described energy-efficient treatment system also includes exhaust gas processing device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521102616.6U CN205347084U (en) | 2015-12-25 | 2015-12-25 | High concentration contains energy -conserving processing system of salt waste water organically |
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| CN201521102616.6U CN205347084U (en) | 2015-12-25 | 2015-12-25 | High concentration contains energy -conserving processing system of salt waste water organically |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776694A (en) * | 2015-12-25 | 2016-07-20 | 浙江奇彩环境科技股份有限公司 | Energy-saving treatment system for high-concentration organic salt-containing wastewater |
| CN111688521A (en) * | 2020-06-18 | 2020-09-22 | 福建百城新能源科技有限公司 | Distributed direct-current energy storage charging pile |
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2015
- 2015-12-25 CN CN201521102616.6U patent/CN205347084U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776694A (en) * | 2015-12-25 | 2016-07-20 | 浙江奇彩环境科技股份有限公司 | Energy-saving treatment system for high-concentration organic salt-containing wastewater |
| CN105776694B (en) * | 2015-12-25 | 2019-04-02 | 浙江奇彩环境科技股份有限公司 | A kind of energy-efficient treatment system of the organic brine waste of high concentration |
| CN111688521A (en) * | 2020-06-18 | 2020-09-22 | 福建百城新能源科技有限公司 | Distributed direct-current energy storage charging pile |
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Address after: 312000 Zhejiang province Shaoxing City Choi Di Dang new building 17 floor room 1709 Patentee after: ZHEJIANG QICAI ENVIRONMENT TECHNOLOGY CO., LTD. Address before: 312000 Zhejiang province Shaoxing City Choi Di Dang new building 17 floor room 1709 Patentee before: The extraordinary splendour environmental science and technology company limited in Zhejiang |