CN213506146U - Wet oxidation intelligent control system - Google Patents
Wet oxidation intelligent control system Download PDFInfo
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- CN213506146U CN213506146U CN201921509961.XU CN201921509961U CN213506146U CN 213506146 U CN213506146 U CN 213506146U CN 201921509961 U CN201921509961 U CN 201921509961U CN 213506146 U CN213506146 U CN 213506146U
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- 238000009279 wet oxidation reaction Methods 0.000 title claims description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 62
- 230000003647 oxidation Effects 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000010865 sewage Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 239000000839 emulsion Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 17
- 230000016507 interphase Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 230000005501 phase interface Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 238000005265 energy consumption Methods 0.000 description 5
- 230000009931 harmful effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides a wet-type oxidation intelligence control system, it includes: the oxidation tower is used for carrying out oxidation treatment on the sewage so as to prepare oxidation water; the heater is used for heating the sewage entering the oxidation tower; the heat exchanger is used for carrying out heat exchange on the sewage and the oxidation water; the air compression device is connected with the air inlet of the oxidation tower and used for providing air or oxygen for the oxidation tower, and the control device is used for controlling each controlled element in the system; the oxidation tower is provided with at least one air inlet, each air inlet is provided with a micro-interface generator, and the micro-interface generators are used for breaking gas from the air pressure device into bubbles, so that the bubbles and sewage form gas-liquid emulsion, and the phase interface area of the gas and the liquid is increased. The utility model discloses compare in traditional wet-type oxidation system possess reaction rate height, characteristics such as reaction pressure is little.
Description
Technical Field
The utility model relates to a water treatment technical field generally, and more specifically relates to a wet oxidation intelligence control system.
Background
With the rapid development of various industries in the society, the problem of industrial sewage discharge is receiving more and more attention from the society, and especially the production sewage in the industries of chemical engineering, electroplating, medicine and the like generally has the characteristics of high salinity, high organic matters and more toxic and harmful components, and has great harm to the environment; the difficulty of handling is great. With the increase of the national requirements for environmental protection, the treatment of the sewage becomes extremely urgent.
The wet oxidation technology is a process method for removing organic matters in sewage by reacting the sewage with oxygen in the air. The method can directly treat the sewage with high organic matters, high salt and a large amount of toxic and harmful components, and has much lower energy consumption compared with incineration and other methods. After wet oxidation, toxic and harmful substances in the sewage are degraded into low-molecular organic salt, so that secondary pollution to the environment is avoided, and the method is adopted by many enterprises.
At present, the domestic wet oxidation technology generally adopts an oxidation tower oxidation mode, namely, sewage is mixed with air in an oxidation tower through heating treatment, so that toxic and harmful substances in the sewage are oxidized and degraded, but the existing wet oxidation technology has the problems of poor safety of a reaction device and high reaction energy consumption due to overhigh reaction pressure in the actual application process; in the prior art, although a certain amount of micron-scale bubbles can be obtained by means of mechanical crushing, fluid impact, ultrasound and the like, the gas-liquid ratio (the ratio of the gas volume to the liquid volume) is too low, generally lower than 1%, and the upper limit is not more than 5%, and in addition, the energy consumption and the manufacturing cost of equipment for generating micro-bubbles are too high; therefore, there is a need for a wet oxidation intelligent control system to at least partially address the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
In order to solve the above technical problem at least partially, the utility model provides a wet oxidation intelligence control system which characterized in that includes:
the oxidation tower is used for carrying out oxidation treatment on the sewage so as to prepare oxidation water;
the heater is used for heating the sewage entering the oxidation tower;
a heat exchanger for exchanging heat between the sewage and the oxidized water;
the air compression device is connected with the air inlet of the oxidation tower and is used for providing air or oxygen for the oxidation tower; and
the control device comprises a controller and a controlled element controlled by the controller;
wherein, the oxidation tower is equipped with at least one the air inlet is every be equipped with micro-interface generator on the air inlet, micro-interface generator is used for with coming from the gas of air compressor unit is smashed into the bubble, makes bubble and sewage form the gas-liquid emulsion to the interphase area of increase gas and liquid.
Further, still include the raw water storage tank, the raw water storage tank is used for storing sewage.
Further, a liquid level meter is arranged on the raw water storage tank.
Further, still include the water pump, the water pump sets up on connecting raw water storage tank with the pipeline of heat exchanger.
Further, the air compression device comprises at least two air compressor sets and an air storage tank which are connected in parallel.
Further, the micro-interface generator is a pneumatic micro-interface generator, a hydraulic micro-interface generator or a gas-liquid linkage micro-interface generator.
Further, the device also comprises a valve, and the valve is arranged on a pipeline connecting the air compression device and the oxidation tower.
Further, the controlled element comprises the liquid level meter, the water pump and the valve.
Further, the diameter of the bubble is 1 μm or more and less than 1 mm.
In the utility model, the micro-interface generator can break the bubbles into micron-sized bubbles, thereby increasing the phase interface area between the gas phase and the liquid phase and further achieving the effect of strengthening mass transfer within a lower preset operating condition range; meanwhile, the micron-sized bubbles can be fully mixed with the raw materials to form a gas-liquid emulsion, so that the reaction efficiency is improved; on the other hand, as the gas is dissolved in the liquid, the reaction device does not need to maintain larger pressure to carry out the reaction, thereby improving the safety of the device and saving the energy consumption.
Drawings
In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings.
Fig. 1 is a schematic diagram of a wet oxidation intelligent control system according to the present invention.
Description of reference numerals:
1: heating device
2: oxidation tower
3: heat exchanger
4: micro-interface generator
5: raw water storage tank
51: liquid level meter
6: water pump
7: air compression device
71: air compressor unit
72: air storage tank
8: controller
9: valve gate
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.
In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.
As shown in fig. 1, the present invention provides a wet oxidation intelligent control system, which comprises: the heater 1 is used for heating the sewage entering the oxidation tower; the oxidation tower 2 is used for carrying out oxidation treatment on the sewage so as to prepare oxidation water; the heat exchanger 3 is used for carrying out heat exchange on the sewage and the oxidation water; and the air compression device 7 is connected with the air inlet of the oxidation tower 2, and is used for providing air or oxygen for the oxidation tower 2.
Specifically, the oxidation tower 2 is provided with at least one air inlet, each air inlet is connected with an air compression device 7 through a pipeline, and the micro-interface generator 4 is further arranged, and the micro-interface generator 4 is arranged inside the oxidation tower 2 and is positioned near each air inlet. The micro-interface generator 2 is used for breaking the gas from the air pressure device 7 into bubbles, so that the bubbles and the sewage form gas-liquid emulsion, thereby increasing the phase interface area of the gas and the liquid.
It can be understood by those skilled in the art that the micro-interface generator 4 of the embodiment of the present invention is embodied in the prior patent of the present invention, such as the patent of publication No. 106215730a, the core of the micro-interface generator 4 is bubble breaking, and the principle of the bubble breaker is that the gas carried by the high-speed jet collides with each other to perform energy transfer, so as to break the bubble. The connection between the micro-interface generator and the oxidation tower and other devices, including the connection structure and the connection position, is not limited according to the structure of the micro-interface generator 4. The reaction mechanism and the control method of the micro-interface generator 4 are disclosed in the prior patent CN107563051B, and are not described in detail. Meanwhile, the number and the position of the air inlets can be adjusted according to the actual engineering requirements by factors such as the height, the length, the diameter, the sewage flow rate and the like of the oxidation tower 2 in the system, so that the air supply effect is better and the oxidative degradation rate is improved.
In some embodiments of the present invention, the micro-interface generator 4 can be selected to be a pneumatic micro-interface generator, a hydraulic micro-interface generator or a gas-liquid linkage micro-interface generator according to actual requirements, i.e. the gas-liquid ratio.
In some embodiments of the present invention, a raw water storage tank 5 is further provided, and the raw water storage tank 5 is used for storing sewage.
In some embodiments of the present invention, a liquid level meter 51 is disposed on the raw water storage tank 5. The water quantity in the raw water storage tank 5 is monitored by the liquid level meter 51, so that the water inlet quantity and the water outlet quantity of the raw water storage tank 5 can be adjusted in time, and the stability of the system operation is ensured.
In some embodiments of the present invention, the air compressing device 7 comprises at least two air compressor sets 71 and air storage tanks 72 connected in parallel. Its purpose is in order to guarantee the stability of system's air supply, because when the air supply unstable, atmospheric pressure is low excessively, when the air supply is not enough, reaction efficiency will greatly reduced in the oxidation tower 2, the reaction is not enough, organic matter and inorganic matter in the sewage just are difficult to the oxidation and are discharged, the oxidation water of emission will be unqualified, harmful substance exceeds standard, so adopt the parallelly connected air feed of two air compressors, can alternate use maintains the maintenance, add the continuation that air feed can be guaranteed better to air reservoir 72 simultaneously, and great improvement the air supply stream, the stability of atmospheric pressure.
It will be appreciated by those skilled in the art that the pipes connecting the devices and equipment in the system may be provided with a pump body, for example, the water pump 6 is provided on the pipe connecting the raw water storage tank 5 and the heat exchanger 3. A valve body can be arranged on a pipeline connecting each device and equipment in the system, for example, a pressure reducing valve is arranged on each air inlet connected with the oxidation tower 2 to control the air input and pressure of the gas entering the oxidation tower 2; the utility model discloses do not do too much restriction here to the position and the type that set up of the pump body and valve body, all use actual engineering needs to be the standard.
The utility model also provides a wet oxidation method is reinforceed to the micro-interface, the method includes:
heating a certain amount of sewage, introducing the heated sewage into an oxidation tower 2, and introducing compressed air or compressed oxygen into the oxidation tower 2 to enable the sewage to have an oxidation reaction in the oxidation tower 2;
the compressed gas entering the oxidation tower 2 is firstly crushed by the micro-interface generator 4 before reacting with the sewage, the gas is crushed into bubbles by the micro-interface generator 4, so that the interfacial area of the gas and the sewage is increased, and the bubbles and the sewage are subjected to oxidation reaction in the form of gas-liquid emulsion;
sewage enters from the lower part of the oxidation tower 2, the sewage forms oxidation water after oxidation reaction in the oxidation tower 2, the oxidation water is discharged from the upper part of the oxidation tower 2, and the oxidation water leaving the oxidation tower exchanges heat with unheated sewage through the heat exchanger 3.
The controller 8 controls the working states of the liquid level meter 51, the water pump 6 and the valve 9 through an electric connection mode.
Specifically, the controller 8 detects data of the liquid level meter 51 to control the power of the water pump 6 and the opening amount of the valve 9.
In some embodiments of the present invention, the diameter of the broken bubbles passing through the micro-interface generator 4 is greater than or equal to 1 μm and less than 1 mm.
In the utility model, the micro-interface generator 4 can break the bubbles into micron-sized bubbles, thereby increasing the phase interface area between the gas phase and the liquid phase and further achieving the effect of strengthening mass transfer within a lower preset operating condition range; meanwhile, the micron-sized bubbles can be fully mixed with the raw materials to form a gas-liquid emulsion, so that the reaction efficiency is improved; on the other hand, as the gas is dissolved in the liquid, the reaction device does not need to maintain larger pressure to carry out the reaction, thereby improving the safety of the device and saving the energy consumption. The utility model discloses set up the concrete beneficial effect of micro-interface generator in the system and show as table 1 and table 2.
Table 1 shows the wastewater treatment conditions of plant A, wherein the wastewater of plant A has an organic matter concentration of 20123ppm, a total salt content of 8% and a density of 1100kg/m3Hourly discharge of 5m3The process conditions are as follows: wastewater inflow rate of 5m3Perh, compressed air intake 1024Nm3H is used as the reference value. The compressed air consumption of plant A was 860Nm without the addition of a micro-interface generator3H, average oxidized water yield of 4.3m3The COD value was 16357 mg/L. After the micro-interface generator is added, the compressed air consumption of the plant A is 990Nm3H, average oxidized water yield of 4.7m3The COD value was 8847 mg/L.
TABLE 1
| Original system | New system | Optimized value | |
| COD value | 16357mg/L | 8847mg/L | 46％ |
| Average oxidation water yield | 4.3m3/h | 4.7m3/h | 8％ |
Table 2 shows the wastewater treatment conditions of plant B, wherein the wastewater of plant B had an organic matter concentration of 43257ppm, a total salt content of 8%, and a density of 1054kg/m3Hourly discharge of 5m3The process conditions are as follows: wastewater inflow rate of 5m3Perh, compressed air intake 924Nm3H is used as the reference value. The compressed air consumption of plant B before the addition of the micro-interface generator was 807Nm3H, average oxidized water yield of 4.5m3The COD value was 14627 mg/L. The compressed air consumption of plant B after the addition of the micro-interface generator was 957Nm3H, average oxidized water yield of 4.8m3The COD value was 8991 mg/L.
TABLE 2
| Original system | New system | Optimized value | |
| COD value | 14627mg/L | 8991mg/L | 39％ |
| Average oxidation water yield | 4.5m3/h | 4.8m3/h | 6％ |
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many more modifications and variations are possible in light of the above teaching and are intended to be included within the scope of the invention.
Claims (8)
1. An intelligent control system for wet oxidation, comprising:
the oxidation tower is used for carrying out oxidation treatment on the sewage so as to prepare oxidation water;
the heater is used for heating the sewage entering the oxidation tower;
a heat exchanger for exchanging heat between the sewage and the oxidized water;
the air compression device is connected with the air inlet of the oxidation tower and is used for providing air or oxygen for the oxidation tower; and
the control device comprises a controller and a controlled element controlled by the controller;
wherein, the oxidation tower is equipped with at least one the air inlet is every be equipped with micro-interface generator on the air inlet, micro-interface generator is used for with coming from the gas of air compressor unit is smashed into the bubble, makes bubble and sewage form the gas-liquid emulsion to the interphase area of increase gas and liquid.
2. The intelligent control system for wet oxidation according to claim 1, further comprising a raw water storage tank for storing sewage.
3. The intelligent control system for wet oxidation according to claim 2, wherein a liquid level meter is arranged on the raw water storage tank.
4. The intelligent control system for wet oxidation according to claim 2, further comprising a water pump disposed on a pipe connecting the raw water storage tank and the heat exchanger.
5. The intelligent control system of claim 1, wherein the air compressor assembly comprises at least two air compressor sets and an air reservoir connected in parallel.
6. The intelligent control system for wet oxidation according to claim 1, wherein the micro-interface generator is a pneumatic micro-interface generator, a hydraulic micro-interface generator or a gas-liquid linkage micro-interface generator.
7. The intelligent control system for wet oxidation according to claim 1, further comprising a valve disposed on a pipe connecting the air compressing device and the oxidation tower.
8. The intelligent control system for wet oxidation according to claim 1, wherein the diameter of the bubbles is 1 μm or more and less than 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921509961.XU CN213506146U (en) | 2019-09-11 | 2019-09-11 | Wet oxidation intelligent control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921509961.XU CN213506146U (en) | 2019-09-11 | 2019-09-11 | Wet oxidation intelligent control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213506146U true CN213506146U (en) | 2021-06-22 |
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| CN201921509961.XU Active CN213506146U (en) | 2019-09-11 | 2019-09-11 | Wet oxidation intelligent control system |
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