CN208814725U - A kind of multistage air inlet wet oxidation system - Google Patents
A kind of multistage air inlet wet oxidation system Download PDFInfo
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- CN208814725U CN208814725U CN201820968007.6U CN201820968007U CN208814725U CN 208814725 U CN208814725 U CN 208814725U CN 201820968007 U CN201820968007 U CN 201820968007U CN 208814725 U CN208814725 U CN 208814725U
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- air inlet
- sewage
- oxidizing tower
- wet oxidation
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Abstract
The utility model discloses a kind of multistage air inlet wet oxidation systems.The system includes to the heater heated to sewage, the oxidizing tower, the pneumatics unit to provide oxidizing tower air and the heat exchanger for carrying out will aoxidize water with the sewage for being brought into heater heat exchange that obtain to aoxidize the sewage of heated device oxidation water, and oxidizing tower is passed through the air inlet of oxidizing tower equipped with multiple air for providing pneumatics unit along the different location of water (flow) direction.The system makes gas distribution abundance in oxidizing tower uniformly, increase the contact area of gas liquid reaction, improve oxidative degradation rate by way of more inlet charges；Simultaneously because the raising of oxidative degradation rate, reacts a large amount of heat of output, temperature in oxidizing tower is increased, oxidative degradation efficiency is further improved；Since temperature increases in oxidizing tower, makes oxidation water that there is the sewage before higher heat and heating to carry out heat exchange, make full use of thermal energy, reduce heating cost.
Description
Technical field
The utility model relates to sewage treatment fields, and in particular to a kind of multistage air inlet wet oxidation system.
Background technique
With the fast development of social all trades and professions, the also concern more and more by society the problem of industrial wastewater discharge,
The especially production waste of the industries such as chemical industry, plating, medicine, generally there is that salinity is high, organic matter is high, more than poisonous and harmful element
Feature, it is very big to environmental hazard；Processing difficulty is very big.With the raising that Environmental protection requires, the improvement of such sewage
Become extremely urgent.
Wet Oxidation Process is that the oxygen being warming up to sewage in 150-320 DEG C and air reacts, and is removed with reaching
The process of dirty Organic substance in water.This method can to high organic matter, it is with high salt, directly locate containing the sewage more than poisonous and harmful element
Reason, it is much lower compared to burning and other methods, energy consumption.And the venomous injurant after water oxygen overly moist, in sewage
Matter is degraded to low molecular organic salt, and secondary pollution will not be caused to environment, is used by many enterprises.
Country's Wet Oxidation Process at present generallys use the mode of oxidizing tower oxidation, i.e., sewage is by heat treatment in oxygen
Change and mixed with air in tower, make poisonous and harmful substance oxidative degradation in sewage, but is substantially at present using oxidation tower bottom
Single air inlet is passed through compressed air.In this way since tower is excessively high, cause to be unevenly distributed in high section gas, gas liquid interfacial area becomes
Small, oxidative degradation rate is relatively low, while again since oxidative degradation is insufficient, so that heating is insufficient in tower, causes degradation efficiency relatively low.
Utility model content
The purpose of this utility model is that in view of the above shortcomings of the prior art, proposing a kind of multistage air inlet wet oxidation
System, by the way that air inlet is arranged in multiple positions of oxidizing tower, air is evenly distributed in oxidizing tower, mentions oxidative degradation rate significantly
It is high.
The utility model proposes a kind of multistage air inlet wet oxidation systems, including the heating to be heated to sewage
Device, to aoxidize the sewage through the heater obtain oxidation water oxidizing tower, to the oxidizing tower provide air sky
Pressure unit and the heat exchanger the oxidation water to be carried out to heat exchange with the sewage for being brought into heater, the oxidizing tower edge
The different location of water (flow) direction is equipped with the air inlet that multiple air for providing the pneumatics unit are passed through the oxidizing tower.
Further, further include raw water storage tank to store sewage.
Further, the raw water storage tank is equipped with the liquidometer for showing its inside liquid level.
It further, further include to the pump by sewage transport to the heater.
Further, the air inlet is equipped with the valve to control charge flow rate.
Further, the air inlet is additionally provided with the pressure reducing valve to control admission pressure.
Further, the air inlet is equipped with the monitoring module for monitoring gas flow.
Further, the pneumatics unit includes two air-compressor sets in parallel and stores the air-compressor set to collect
The air accumulator of the air of generation.
Further, further include heating temperature and the pneumatics unit to monitor the heater air demand it is remote
Range monitoring system.
Further, the remote monitoring system is equipped with the temperature to heating process and Oxidative Degradation Process to sewage
Change the temperature sensor detected.
A kind of multistage air inlet wet oxidation system of the utility model makes oxidizing tower by way of more inlet charges
Interior gas distribution is sufficient uniformly, increases the contact area of gas liquid reaction, improves oxidative degradation rate；Simultaneously because oxidative degradation
The a large amount of heat of output is reacted in the raising of rate, increases temperature in oxidizing tower, further improves oxidative degradation efficiency；By
It is increased in temperature in oxidizing tower, makes to aoxidize water with the sewage progress heat exchange before higher heat and heating, make full use of heat
Can, reduce heating cost.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for multistage air inlet wet oxidation system that the utility model applies example.
In figure: 1- heater, 2- oxidizing tower, 3- heat exchanger, 4- air inlet, 5- raw water storage tank, 6- pump, 7- air-compressor set,
8- air accumulator.
Specific embodiment
It, below will control in order to illustrate more clearly of the utility model embodiment and/or technical solution in the prior art
Detailed description of the invention specific embodiment of the present utility model.It should be evident that the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings, and obtain other embodiments.In addition, between being related to the belonging to and only indicate each component of orientation
Relative positional relationship, rather than absolute positional relation.
Embodiment 1
Please refer to Fig. 1.The multistage air inlet wet oxidation system of the utility model embodiment, including to add to sewage
Heat heater 1, to aoxidize the sewage of heated device 1 obtain oxidation water oxidizing tower 2, to oxidizing tower 2 provide air
Pneumatics unit and to will aoxidize water be brought into heater 1 sewage carry out heat exchange heat exchanger 3,2 edge of oxidizing tower
The different location of water (flow) direction is equipped with the air inlet 4 that multiple air for providing pneumatics unit are passed through oxidizing tower 2.
Sewage is reacted with the oxygen in air, the reaction is in oxygen at high operating temperatures by heating by heater 1
Change and carried out in tower 2, when in sewage organic matter or the substances such as inorganic matter be oxidized degradation after, that is, generate oxidation water.Due to oxygen
Change degradation reaction and needs a large amount of air-source, so the utility model is supplied using an independent pneumatics unit, with
Guarantee to provide sufficient oxygen for oxidative degradation, it is ensured that sufficiently reaction.
Due to the particularity of 2 structure of single tower bottom intake method and oxidizing tower of oxidizing tower 2, cause most of react can only
It is carried out in 2 bottom of oxidizing tower, because the oxygen in the gas source of 2 bottom of oxidizing tower will soon participate in oxygen after entering oxidizing tower 2
Change degradation reaction after oxygen is depleted, still has most of substance that can not be oxidized degradation since air inflow is limited in sewage；Together
When the product of the gas liquid reaction junction in oxidizing tower 2 also limited due to single intake method, do not make full use of in oxidizing tower 2 empty
Between, oxidative degradation rate can not be more preferably improved, so the utility model is equipped with multiple air inlets 4, air inlet 4 on oxidizing tower 2
The direction that sewage flows to along oxidizing tower 2 is set gradually, to guarantee that different location can obtain sufficient air confession in oxidizing tower 2
Sewage oxidation degradation, greatly improves oxidative degradation rate of the sewage in oxidizing tower 2, carries out oxidation reaction more fully.
Can according to the actual situation, such as the factors such as 2 height of oxidizing tower, length, diameter, effluent flow rate are to the number of air inlet 4
Amount and position are adjusted, and to reach preferably gas supply effect, improve oxidative degradation rate.
The utility model is utilized using the oxidation water with high fever obtained after 3 pairs of heat exchanger oxidations, will aoxidize water
Heat the sewage before thermal response to be added is passed to by heat exchanger 3, sewage is preheated in this way, reduces heating energy
Consumption；Meanwhile it being greatly reduced the temperature of oxidation water, it, which is more also beneficial to, into subsequent processing carries out processing use.Because
The multistage intake method that the utility model uses is supplied, and keeps the oxidation reaction in oxidizing tower 2 more acutely and abundant, is made anti-
A large amount of heat should be released, the temperature of oxidation water is improved, thus heat exchange preferably can be carried out by heat exchanger 3 and sewage,
Sewage temperature is improved, heating energy consumption is further reduced.
It further include the raw water storage tank 5 to store sewage, raw water as the wet oxidation system of the utility model embodiment
Storage tank 5 is equipped with the liquidometer for showing its inside liquid level.Its purpose is to preferably guarantee the stability of system operation, lead to
It crosses raw water storage tank 5 to carry out caching enough sewage, to carry out heated oxide；By liquidometer to the water in raw water storage tank 5 into
Row monitoring guarantees the more stable operation of system to adjust the inflow and water yield of raw water storage tank 5 in time.
It further include to the pump by sewage transport to heater 1 as the wet oxidation system of the utility model embodiment
6.Power is provided with the sewage to system.
Air inlet 4 is equipped with the valve to control charge flow rate.Air inlet 4 is additionally provided with the decompression to control admission pressure
Valve.Air inlet 4 is equipped with the monitoring module for monitoring gas flow.
Since the reaction in oxidizing tower 2 is carried out in the state of high fever, so temperature and pressure that oxidizing tower 2 is born
Power can impact effluent flow rate, the extent of reaction, so valve and pressure reducing valve, Ke Yigeng are arranged at each air inlet 4
It is good to control the air inflow and admission pressure of various inlet mouth 4 according to the actual situation.
Because the airline pressure under in parallel is consistent, this results in each air inlet 4 to be to the supply gas pressure of oxidizing tower 2
It is consistent, but can thus biggish resistance be caused to the flowing of sewage in oxidizing tower 2, so in the actual operation process,
It preferably keeps flowing to direction along sewage and sets gradually the admission pressure of air inlet 4 and gradually become smaller, reaction can be more advantageous in this way
Oxidation water discharge afterwards, accelerates the overall operation rate of system, to also improve the treatment effeciency of sewage.
Preferably each 4 flow of air inlet and pressure can be supervised using intelligent monitored control module in the utility model
Control, so that operator is adjusted in real time.
Pneumatics unit includes two air-compressor sets 7 in parallel and the storage to collect the air that storage air-compressor set 7 generates
Gas tank 8.Its purpose is to guarantee the stability of system gas source because when gas source not quietly, air pressure it is too low, air demand is insufficient
When, the reaction efficiency in oxidizing tower 2 just will be greatly reduced, and react insufficient, organic matter and inorganic matter in sewage are just difficult to oxygen
Change degradation, the oxidation water of discharge will be unqualified, and harmful substance is exceeded, so supplying using two air compressor machine parallel connections, Ke Yijiao
It is repaired for working service, while adding air accumulator 8 can preferably guarantee the duration of gas supply, and also greatly improves gas
Source gas stream, air pressure stability.
As the wet oxidation system of the utility model embodiment, further include to monitor the heating temperature of heater 1 and
The remote monitoring system of the air demand of pneumatics unit.Remote monitoring system is equipped with to the heating process and oxidative degradation to sewage
The temperature sensor that the temperature change of process is detected.
Since this system is all largely to carry out at high temperature under high pressure, while temperature plays key to oxidative degradation
Effect, thus not only to operational safety the considerations of, but also will in time to reaction key parameter monitoring, be then arranged a set of
Remote monitoring system, again can be to the monitoring of different phase temperature while to guarantee safety.
Embodiment 2
The waste water of factory A, entering organic matter of water concentration are 50123ppm, total salt content 8%, density 1100kg/m3, waste water
20 DEG C of temperature, small time discharge amount is 5m3/h.Utilize multistage air inlet wet-type oxidation technology, process conditions are as follows: influent waste water stream
Measure 5m3/h；Compressed air air inflow is 1024 Nm3/h.After system reaches balance, averagely water outlet COD is 9648mg/L, average
Oxidation water water yield be 4.2m3/h, oxidizing tower be averaged leaving water temperature be 273 DEG C.Need 44.8 ㎡ of heat exchange area；It is same dirty
Water, the operation data of traditional wet oxidation are as follows: 860 Nm3/h of compressed air consumption；After system reaches balance, oxidation solution is average
Water outlet COD be 16357 mg/L, average oxidation water water yield be 4.3m3/H, oxidizing tower be averaged leaving water temperature be 270 DEG C.It needs
57.4 ㎡ of heat exchange area.Comparing is shown in Table 1.
COD is the amount for chemically measuring the reducing substances for needing to be oxidized in water sample.Waste water, waste water treatment plant go out
In water and contaminated water, the oxygen equivalent for the substance that can be aoxidized by strong oxidizer.
Embodiment 3
The waste water of factory B, entering organic matter of water concentration are 43257ppm, total salt content 8%, density 1054kg/m3, waste water
23 DEG C of temperature, small time discharge amount is 5m3/h.Utilize multistage air inlet wet-type oxidation technology, process conditions are as follows: influent waste water stream
Measure 5m3/h；Compressed air air inflow is 924 Nm3/h.After system reaches balance, averagely water outlet COD is 8964 mg/L, average
Oxidation water water yield be 4.2m3/h, oxidizing tower be averaged leaving water temperature be 270 DEG C.Need 51.1 ㎡ of heat exchange area.It is same dirty
Water, the operation data of traditional wet oxidation are as follows: 807 Nm3/h of compressed air consumption；It is average to be discharged after system reaches balance
COD be 14627 mg/L, average oxidation water water yield be 4.5m3/H, oxidizing tower be averaged leaving water temperature be 265 DEG C.It needs to exchange heat
67.2 ㎡ of area.Comparing is shown in Table 2.
COD is the amount for chemically measuring the reducing substances for needing to be oxidized in water sample.Waste water, waste water treatment plant go out
In water and contaminated water, the oxygen equivalent for the substance that can be aoxidized by strong oxidizer.
By the comparing of Tables 1 and 2 this it appears that: factory A and factory B is using multistage air inlet wet oxidation
After system, each key parameter is significantly improved, and sewage treatment capacity is greatly improved, and COD value optimizes on the original basis
Value is respectively 41% and 39%, realizes very big promotion, is provided with higher oxidative degradation rate；In leaving water temperature and heat-transfer surface
, can also be it is easy to see that leaving water temperature increase in long-pending alignment parameters, required heat exchange area is greatly reduced, effectively
Reduce heating cost.
Exemplary illustration carried out to the embodiments of the present invention above, but the content be only the utility model compared with
Good embodiment, should not be considered as limiting the scope of the present invention.It is all equal according to application scope of the utility model
Deng variation and improvement etc., should all belong within the patent covering scope of the utility model.
Claims (10)
1. a kind of multistage air inlet wet oxidation system carries out heated oxide processing to sewage, it is characterised in that: including to dirt
Heater (1) that water is heated, the oxidizing tower (2) that oxidation water is obtained to aoxidize the sewage through the heater (1), to
To the oxidizing tower (2) provide air pneumatics unit and to by the oxidation water be brought into the sewage of heater (1)
The heat exchanger (3) of heat exchange is carried out, the oxidizing tower (2) is equipped with multiple by the pneumatics unit along the different location of water (flow) direction
The air of offer is passed through the air inlet (4) of the oxidizing tower (2).
2. a kind of multistage air inlet wet oxidation system as described in claim 1, it is characterised in that: further include to store sewage
Raw water storage tank (5).
3. a kind of multistage air inlet wet oxidation system as claimed in claim 2, it is characterised in that: the raw water storage tank (5) sets
There is the liquidometer for showing its inside liquid level.
4. a kind of multistage air inlet wet oxidation system as described in claim 1, it is characterised in that: further include to sewage is defeated
It send to the pump of the heater (1) (6).
5. a kind of multistage air inlet wet oxidation system as described in claim 1, it is characterised in that: the air inlet (4) is equipped with
To control the valve of charge flow rate.
6. a kind of multistage air inlet wet oxidation system as described in claim 1, it is characterised in that: the air inlet (4) also sets
There is the pressure reducing valve to control admission pressure.
7. a kind of multistage air inlet wet oxidation system as described in claim 1, it is characterised in that: the air inlet (4) is equipped with
For monitoring the monitoring module of gas flow.
8. a kind of multistage air inlet wet oxidation system as described in claim 1, it is characterised in that: the pneumatics unit includes two
The air-compressor set (7) of a parallel connection and the air accumulator (8) to collect the air that the storage air-compressor set (7) generates.
9. a kind of multistage air inlet wet oxidation system as described in claim 1, it is characterised in that: further include described to monitor
The remote monitoring system of the heating temperature of heater (1) and the air demand of the pneumatics unit.
10. a kind of multistage air inlet wet oxidation system as claimed in claim 9, it is characterised in that: the remote monitoring system
The temperature sensor detected equipped with the temperature change to heating process and Oxidative Degradation Process to sewage.
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| CN201820968007.6U CN208814725U (en) | 2018-06-22 | 2018-06-22 | A kind of multistage air inlet wet oxidation system |
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| CN201820968007.6U CN208814725U (en) | 2018-06-22 | 2018-06-22 | A kind of multistage air inlet wet oxidation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675433A (en) * | 2018-06-22 | 2018-10-19 | 杭州深瑞水务有限公司 | A kind of multistage air inlet wet oxidation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675433A (en) * | 2018-06-22 | 2018-10-19 | 杭州深瑞水务有限公司 | A kind of multistage air inlet wet oxidation system |
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Address after: Room 303, 3 / F, building 4, 972 Moganshan Road, Gongshu District, Hangzhou City, Zhejiang Province 310000 Patentee after: Hangzhou Shenrui Environment Co.,Ltd. Address before: 310011 No. 972 Moganshan Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU SUNRISE WATER AFFAIRS Co.,Ltd. |