CN220012308U - Ozone adding automatic control device - Google Patents
Ozone adding automatic control device Download PDFInfo
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- CN220012308U CN220012308U CN202320676299.7U CN202320676299U CN220012308U CN 220012308 U CN220012308 U CN 220012308U CN 202320676299 U CN202320676299 U CN 202320676299U CN 220012308 U CN220012308 U CN 220012308U
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- ozone
- reaction tank
- water pump
- ejector
- motor control
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 126
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 19
- 230000003647 oxidation Effects 0.000 description 14
- 238000007254 oxidation reaction Methods 0.000 description 14
- 239000002351 wastewater Substances 0.000 description 10
- 239000010865 sewage Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Abstract
The utility model discloses an ozone adding automatic control device, which comprises a water pump, an ejector, an ozone concentration transmitter, a PLC controller and an MCC motor control center, wherein the ejector is connected with the water pump; the water pump and the ejector are sequentially arranged on a pipeline between the water storage tank and the ozone reaction tank, the ejector is also connected with an external ozone pipeline, and ozone is mixed with water in the water storage tank and then is sent into the ozone reaction tank together; the ozone concentration transmitter is arranged in the ozone reaction tank and is used for measuring a concentration signal of ozone in tail gas discharged by the ozone reaction tank; the MCC motor control center is connected with the water pump and used for regulating and controlling the pressure of the water pump; the ozone concentration transmitter and the MCC motor control center are connected to the PLC together in a signal mode. And the PLC controller determines the regulating pressure of the water pump according to the received ozone concentration signal of the ozone concentration transmitter and sends the regulating pressure to the MCC motor control center, and the MCC motor control center executes the regulation of the pressure of the water pump.
Description
Technical Field
The utility model belongs to the field of advanced treatment of chemical and pharmaceutical wastewater, and particularly relates to an automatic ozone adding control device.
Background
Part of chemical and pharmaceutical wastewater CODcr has high concentration, is difficult to biodegrade, has inhibition or toxic action on microorganisms, and has poor treatment efficiency or invalid condition when the wastewater is singly subjected to biochemical treatment, and the part of chemical and pharmaceutical wastewater is treated by adopting a combined process of Advanced Oxidation (AOPs) and biology so as to achieve the aims of saving energy, reducing consumption and reaching the discharge standard.
At present, advanced Oxidation (AOPs) based on ozone oxidation is applied more, and the main characteristics are that new ions are not added to the target treated water quality, new pollution is not brought, the equipment technology is mature, and only electric energy and oxygen are used. Has wide application space in water supply disinfection and pretreatment before biochemical treatment or advanced treatment after biochemical treatment of industrial wastewater.
The domestic ozone oxidation or advanced oxidation ozone jet feeding device adopts an electric or pneumatic regulating valve arranged on an ozone inlet pipeline to control the ozone feeding amount according to the ozone concentration of a reaction tank or the opening degree of an on-line PID regulating valve of the ozone concentration of an exhaust system, the failure rate of the electric or pneumatic regulating valve in operation is higher, the inlet regulating valve equipment is high in price, when the water treatment amount is small, the operation working condition of a water pump cannot be regulated, the operation power of the feeding system equipment cannot be regulated, and the operation energy consumption is high.
Disclosure of Invention
The utility model aims to: aiming at the defects of the prior art, the utility model provides the ozone ejector feeding device, which realizes automatic control of ozone feeding, reduces the manual management workload of the ozone feeding device and achieves the aims of energy conservation and consumption reduction.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an automatic control device for ozone addition comprises a water pump, an ejector, an ozone concentration transmitter, a PLC controller and an MCC motor control center; the water pump and the ejector are sequentially arranged on a pipeline between the water storage tank and the ozone reaction tank, the ejector is also connected with an external ozone pipeline, and ozone is mixed with water in the water storage tank and then is sent into the ozone reaction tank together; the ozone concentration transmitter is arranged in the ozone reaction tank and is used for measuring a concentration signal of ozone in tail gas discharged by the ozone reaction tank; the MCC motor control center is connected with the water pump and used for regulating and controlling the pressure of the water pump; the ozone concentration transmitter and the MCC motor control center are connected to the PLC together in a signal mode. And the PLC controller determines the regulating pressure of the water pump according to the received ozone concentration signal of the ozone concentration transmitter and sends the regulating pressure to the MCC motor control center, and the MCC motor control center executes the regulation of the pressure of the water pump.
Further, a pressure transmitter is arranged on the pipeline between the ejector and the water pump and is used for measuring a pressure signal of water in the pipeline; the pressure transmitter is signally connected to the PLC controller. And the PLC calculates and determines the regulating pressure of the water pump according to the pressure signal of the received pressure transmitter and the ozone concentration signal of the received ozone concentration transmitter.
Specifically, the pipeline at the front end of the outlet of the ejector is sent from the top of the ozone reaction tank and extends to the bottom of the ozone reaction tank, and ozone is sent into the ozone reaction tank in the form of micro bubbles.
Further, the PLC is connected with a human-computer interface, corresponding parameters are set through the human-computer interface, and the effect of automatic control is achieved.
Specifically, the top of ozone reaction tank is equipped with the exhaust emission mouth, outwards discharges tail gas through the exhaust emission pipe of connecting in exhaust emission mouth department.
Preferably, the ozone concentration transmitter is arranged at an exhaust gas discharge port at the top of the ozone reaction tank.
The beneficial effects are that:
the automatic control device for ozone addition adopts PLC automatic control, realizes automatic control of ozone addition, reduces the manual management workload of the ozone addition device, and achieves the purposes of energy saving and consumption reduction. The water pump of the feeding system is automatically controlled by the PLC-MCC motor control center, the air suction amount of the ejector can be regulated on line, the optimal air-water ratio is regulated, the feeding system is ensured to run at the optimal oxidation and reaction efficiency of ozone, an expensive inlet regulating valve is omitted, the running failure rate of equipment is reduced, the maximum energy-saving efficiency can reach 67 percent according to different requirements on the oxidation difficulty and the removal rate of CODcr in wastewater (sewage), the energy consumption of the ozone oxidation and advanced oxidation feeding system can be reduced, the flexibility and the controllability of the control system are improved, and the system is simple and reliable.
Drawings
The foregoing and/or other advantages of the utility model will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings and detailed description.
Fig. 1 is a schematic diagram of the system structure of the ozone adding automatic control device.
Wherein each reference numeral represents:
1, a water storage pool; 2, a water pump; 3, a jet device; 4MCC motor control center; 5 a PLC controller; 6, a human-computer interface; 7, an ozone concentration transmitter; 8, an exhaust gas discharge pipe; and 9, an ozone reaction tank.
Detailed Description
The utility model will be better understood from the following examples.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present utility model, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the terms of modification, variation of proportions, or adjustment of sizes, without affecting the efficacy or achievement of the present utility model, should be understood as falling within the scope of the present utility model. Also, the terms such as "upper", "lower", "front", "rear", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the utility model for which the utility model may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
As shown in fig. 1, the ozone adding automatic control device comprises a water pump 2, an ejector 3, an ozone concentration transmitter 7, a PLC controller 5 and an MCC motor control center 4.
The water pump 2 and the ejector 3 are sequentially arranged on a pipeline between the water storage tank 1 and the ozone reaction tank 9, the ejector 3 is also connected with an external ozone pipeline, and ozone is mixed with water in the water storage tank 1 and then is sent into the ozone reaction tank 9; the ozone concentration transmitter 7 is arranged in the ozone reaction tank 9 and is used for measuring a concentration signal of ozone in tail gas discharged by the ozone reaction tank 9; the MCC motor control center 4 is connected with the water pump 2 and used for regulating and controlling the pressure of the water pump 2; the ozone concentration transmitter 7MCC motor control center 4 is connected to the PLC controller 5 together with signals. The PLC controller 5 determines the regulation pressure of the water pump 2 based on the received ozone concentration signal of the ozone concentration transmitter 7 and transmits to the MCC motor control center 4, and the regulation of the pressure of the water pump 2 is performed by the MCC motor control center 4. The top of the ozone reaction tank 9 is provided with a tail gas discharge port, and the tail gas is discharged outwards through a tail gas discharge pipe connected to the tail gas discharge port. The ozone concentration transmitter 7 is arranged at the exhaust gas discharge port at the top of the ozone reaction tank 9.
A pressure transmitter 10 is also arranged on the pipeline between the ejector 3 and the water pump 2 and is used for measuring the pressure signal of the water in the pipeline; the pressure transmitter 10 is signally connected to the PLC controller 5. The PLC controller 5 calculates and determines the regulating pressure of the water pump 2 according to the pressure signal of the received pressure transmitter 10 and the ozone concentration signal of the received ozone concentration transmitter 7.
The front end pipeline of the outlet of the ejector 3 is sent from the top of the ozone reaction tank 9 and extends to the bottom of the ozone reaction tank 9, and ozone is sent into the ozone reaction tank 9 in the form of micro bubbles.
The PLC controller 5 is connected with the human-computer interface 6, and corresponding parameters are set through the human-computer interface industrial personal computer 6, so that the effect of automatic control is realized.
In the embodiment, the Model of the water pump 2 is G315-80, the Model of the ejector 3 is Model3090, the Model of the ozone concentration transmitter 7 is UV-3300C, PLC, the Model of the controller 5 is Siemens PLC200, the Model of the MCC motor control center 4 is Siemens MM420 series, and the Model of the pressure transmitter 10 is constant river 2088 series. The components are market mature products, and a person skilled in the art can select different manufacturer models according to the needs and adopt corresponding known circuits to realize the effect of automatic control.
The using process and principle of the device are as follows: when the ozone concentration of the ozone adding tail gas system is higher than a set value, the PLC instructs the MCC motor control center to increase the operation frequency of the water pump to improve the operation pressure of the water inlet end of the ejector, so that the bubbles of the mixed liquid of the ejector are smaller, the dispersion and mass transfer of ozone in wastewater (sewage) are more facilitated, the oxidation efficiency and the utilization rate of the ozone are improved, and the function requirement of reducing the concentration of the ozone in the tail gas is met; when the ozone concentration of the ozone adding tail gas system is smaller than a set value, the PLC instructs the MCC motor control center to reduce the operation frequency of the water pump and the operation pressure of the water inlet end of the ejector, so that the size of bubbles of the mixed liquid of the ejector is increased, the requirements of dispersing and transferring ozone in wastewater (sewage) are met, and the requirements of reducing the operation energy consumption of the ozone adding system are met when the ozone concentration of the tail gas meets the design requirements. When the ozone reaction tank requires higher first-stage COD removal rate, the PLC instructs the MCC motor control center to increase the operation frequency of the water pump to improve the operation pressure of the water inlet end of the ejector, so that the ejector can suck more ozone gas, thereby being more beneficial to improving the COD oxidation capability of ozone on wastewater (sewage) and improving the COD removal rate of the wastewater (sewage); when the ozone reaction tank requires low primary COD removal rate, the PLC instructs the MCC motor control center to reduce the operation frequency of the water pump and the operation pressure of the water inlet end of the ejector, so that the amount of ozone gas which can be inhaled by the ejector is reduced, the COD removal rate of wastewater (sewage) is reduced, the energy conservation and consumption reduction of an oxidation system are facilitated under the condition of meeting the process requirement, and the operability of the operation parameters of the whole system is improved.
The automatic control device for ozone addition is mainly used for advanced oxidation based on ozone addition or ozone oxidation. The water pump is controlled by the PLC-MCC motor control center through the pressure of the jet feeding device, the pressure adjustment range is 0.2-0.42MPa, the ozone concentration of the tail gas of the control and regulation system is smaller than 14mg/L, preferably the ozone concentration of the tail gas is controlled to be 0-8 mg/L, the system is optimized according to the ozone concentration and the ozone concentration of the tail gas, the CODcr removal efficiency and the requirements of the system, and the water is programmed and regulated by the PLC-MCC motor control centerThe pump operating pressure enables the ozone utilization rate and the CODcr removal efficiency of the system to meet the most economical and effective operating mode. The device can adjust the running pressure of the water pump in real time according to the wastewater treatment capacity change of the system and the concentration of inflow CODcr, and achieve the purposes of saving energy and reducing consumption, and the maximum energy saving rate is 67% (Ea=1- [ (0.2 x 0.42) 3 ] 0.5 )。
The utility model provides a thought and a method for an automatic control device for ozone addition, and the method and the way for realizing the technical scheme are more specific, the above is only a preferred embodiment of the utility model, and it should be pointed out that a plurality of improvements and modifications can be made by those skilled in the art without departing from the principle of the utility model, and the improvements and modifications are also considered as the protection scope of the utility model. The components not explicitly described in this embodiment can be implemented by using the prior art.
Claims (6)
1. An automatic ozone adding control device is characterized by comprising a water pump (2), an ejector (3), an ozone concentration transmitter (7), a PLC (programmable logic controller) (5) and an MCC motor control center (4); the water pump (2) and the ejector (3) are sequentially arranged on a pipeline between the water storage tank (1) and the ozone reaction tank (9), the ejector (3) is also connected with an external ozone pipeline, and ozone is mixed with water in the water storage tank (1) and then is sent into the ozone reaction tank (9); the ozone concentration transmitter (7) is arranged in the ozone reaction tank (9) and is used for measuring a concentration signal of ozone in tail gas discharged by the ozone reaction tank (9); the MCC motor control center (4) is connected with the water pump (2) and used for regulating and controlling the pressure of the water pump (2); the ozone concentration transmitter (7) and the MCC motor control center (4) are connected to the PLC (5) together in a signal mode.
2. The automatic ozone adding control device according to claim 1, wherein a pressure transmitter (10) is further arranged on a pipeline between the ejector (3) and the water pump (2) and is used for measuring a pressure signal of water in the pipeline; the pressure transmitter (10) is connected to the PLC (5) in a signal manner.
3. The automatic ozone adding control device according to claim 1, wherein a pipeline at the front end of the outlet of the ejector (3) is fed from the top of the ozone reaction tank (9) and extends to the bottom of the ozone reaction tank (9), and ozone is fed into the ozone reaction tank (9) in the form of micro bubbles.
4. The automatic ozone dosing control device according to claim 1, characterized in that the PLC controller (5) is connected with a human-machine interface (6).
5. The automatic ozone dosing control device according to claim 1, characterized in that the top of the ozone reaction tank (9) is provided with a tail gas discharge port, and the tail gas is discharged outwards through a tail gas discharge pipe (8) connected to the tail gas discharge port.
6. The automatic ozone dosing control device according to claim 5, wherein the ozone concentration transmitter (7) is arranged at an exhaust gas discharge port at the top of the ozone reaction tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320676299.7U CN220012308U (en) | 2023-03-30 | 2023-03-30 | Ozone adding automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320676299.7U CN220012308U (en) | 2023-03-30 | 2023-03-30 | Ozone adding automatic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220012308U true CN220012308U (en) | 2023-11-14 |
Family
ID=88671476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320676299.7U Active CN220012308U (en) | 2023-03-30 | 2023-03-30 | Ozone adding automatic control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220012308U (en) |
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2023
- 2023-03-30 CN CN202320676299.7U patent/CN220012308U/en active Active
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