CN110818063B - Ozone automatic calling device and method - Google Patents
Ozone automatic calling device and method Download PDFInfo
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- CN110818063B CN110818063B CN201911006173.3A CN201911006173A CN110818063B CN 110818063 B CN110818063 B CN 110818063B CN 201911006173 A CN201911006173 A CN 201911006173A CN 110818063 B CN110818063 B CN 110818063B
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- ozone
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims description 16
- 239000000498 cooling water Substances 0.000 claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000012546 transfer Methods 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 15
- 230000001276 controlling effect Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The invention relates to an ozone automatic calling device, which comprises at least two groups of ozone treatment circulating cooling water systems, wherein the ozone treatment circulating cooling water systems comprise: a circulating cooling water system and an ozone adding system respectively configured; in a single-group ozone treatment circulating cooling water system: the ozone adding system comprises an ozone generating system, a gas-water mass transfer system and a control valve; the gas-water mass transfer system is communicated with a bypass of the circulating cooling water system; the ozone generating system, the local support control valve and the gas-water mass transfer system are connected in sequence. Each group of ozone adding systems are connected with each other through a communicating pipe, and a communicating pipeline valve is arranged on the communicating pipe; the ozone generating system, the communicating pipeline valve, the remote control branch valve and the gas-water mass transfer system are connected in sequence. The automatic control system is in signal connection with the local branch valve, the communication valve and the remote control branch valve. The invention can fully utilize equipment resources; on the premise of ensuring the treatment effect, the investment and the operation cost of the ozone equipment system are reduced.
Description
Technical Field
The invention relates to an ozone gas automatic calling device and method for treating circulating cooling water by ozone.
Background
Some industrial enterprises (especially large-scale industrial enterprises such as electric power, chemical industry, steel, electronics and the like) have a plurality of independent circulating cooling water systems, and due to the difference of respective equipment and working conditions and the longer distance between the circulating cooling water systems, an ozone water treatment equipment system (comprising an ozone generator, an oxygen generator, a cold dryer, an air compressor, a gas-water mass transfer device and the like) is often required to be arranged on each circulating cooling water system. For example: the power plant is generally provided with at least two mutually independent generating sets and a circulating cooling water system thereof. If the circulating cooling water is treated by adopting the ozone technology, ozone generating equipment and a gas-water mass transfer device are respectively arranged. The replenishing water source of the power plant is not only municipal reclaimed water, but also part of industrial wastewater recycled in the plant, such as filtered backwash water, resin acid-base regenerated wastewater and the like, so that the water quality is poor and the change is large; high air temperature in summer can lead to high water temperature; the water temperature of the power plant is increased when the power plant runs at full load or high load. These factors all contribute to the accelerated decay of ozone in water and increase consumption.
In the technical design and application process of the prior art, the ozone adding amount is generally configured according to the highest water temperature and worst water quality which can occur, so as to ensure the required ozone generating amount under the worst condition, but the ozone adding amount is obviously uneconomical; if the equipment is configured according to the normal water temperature and water quality, under the working condition of the operation of the single-generator set, if the water temperature and water quality are bad, the ozone amount generated by one set of equipment is not applied, and the other set of equipment is idle, so that the equipment is unreasonable. The challenge is even more severe if the dual gensets are operated simultaneously.
How to design a set of ozone gas automatic calling device and method aiming at circulating cooling water treatment, and solve the defects of the setting modes is a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to provide an ozone automatic calling device and an ozone automatic calling method for circulating cooling water treatment, which can concentrate the ozone amount produced by a plurality of sets of ozone generating systems to intensively treat one circulating cooling water system under severe conditions such as water quality, water temperature and the like, or alternatively treat each circulating cooling water system according to a set time period by utilizing the characteristic of ozone treatment circulating cooling water (the water quality cannot be suddenly changed in a short time), so as to fully utilize equipment resources and reduce the investment and the operation cost of an ozone equipment system on the premise of ensuring the treatment effect.
The invention adopts the following technical scheme:
an ozone automatic calling device comprises at least two groups of ozone treatment circulating cooling water systems, wherein the ozone treatment circulating cooling water systems comprise: a circulating cooling water system and an ozone adding system respectively configured; in a single-group ozone treatment circulating cooling water system: the ozone adding system comprises an ozone generating system, a gas-water mass transfer system and a control valve; the gas-water mass transfer system is communicated with a circulating cooling water system bypass; the ozone generating system, the local support control valve and the gas-water mass transfer system are connected in sequence; each group of ozone adding systems are connected with each other through a communicating pipe, and a communicating pipeline valve is arranged on the communicating pipe; the ozone generating system, the communicating pipeline valve, the remote control branch valve and the gas-water mass transfer system are connected in sequence; the automatic control system is in signal connection with the local branch valve, the communication pipeline valve and the remote control branch valve.
Preferably, the two sets of circulating cooling water systems are a first circulating cooling water system 11 and a second circulating cooling water system 12, the first circulating cooling water system 11 is provided with an ozone generating system 13 and a first gas-water mass transfer system 9, and the second circulating cooling water system 12 is provided with a second ozone generating system 14 and a second gas-water mass transfer system 10.
An automatic ozone calling method is characterized in that the switching and the time sequence of the local branch valve, the communication valve and the remote branch valve are controlled by an automatic control system, so that the flow direction of ozone gas is changed, and the method is realized: concentrating ozone amount produced by a plurality of sets of ozone generating systems, and treating a circulating cooling water system; alternatively, the circulating cooling water systems are alternately treated in turn according to a set time period.
Preferably: three modes are classified:
local mode: the first ozone treatment circulating cooling water system and the second ozone treatment circulating cooling water system independently operate, and a pipeline cut-off state is kept by controlling a valve on the communicating pipe 16; switching the working state according to the start-stop system of the control logic of the self, and controlling a valve and a water pump; the first water pump 7 and the second water pump 8 inject the circulating cooling water of the respective circulating cooling water system back to the respective circulating cooling water system after passing through the first gas-water mass transfer device 9 and the second gas-water mass transfer device 10;
calling mode: m1, if all ozone generated by the first ozone treatment circulating cooling water system is transferred to the second ozone treatment circulating cooling water system: the multiplication of the ozone injection amount of the second circulating cooling water system 12 causes the valve on the ozone gas communicating pipe 16 to be controlled and switched by the automatic control system 15, and the ozone produced by the first ozone treatment circulating cooling water system is intensively supplied to the second ozone treatment circulating cooling water system for use: opening the first communication valve 2, the second local branch valve 4 and the second remote control branch valve 6, and closing the first local branch valve 1, the first remote control branch valve 3 and the second ozone communication valve 5; m2, if all ozone generated by the second ozone treatment circulating cooling water system is transferred to the first ozone treatment circulating cooling water system: the valve on the ozone gas communicating pipe 16 is controlled by the automatic control system 15 to switch by multiplication of the ozone injection amount of the first circulating cooling water system 11, and ozone produced by the second ozone treatment circulating cooling water system is intensively supplied to the first ozone treatment circulating cooling water system for use: opening the second communication valve 5, the first local branch valve 1 and the first remote control branch valve 3, and closing the second local branch valve 4, the second remote control branch valve 6 and the first ozone communication valve 2;
alternate call in/call out mode: the M1 call mode and the M2 call mode are alternately operated in time periods at time periods set by the automatic control system 15.
The invention has the beneficial effects that:
1) Under severe conditions such as water quality and water temperature, the ozone amount produced by a plurality of sets of ozone generating systems can be concentrated to treat one circulating cooling water system, or the characteristics of ozone treatment circulating cooling water (the water quality cannot be suddenly changed in a short time) are utilized, and each circulating cooling water system is alternately treated in turn according to a set time period so as to fully utilize equipment resources;
2) On the premise of ensuring the treatment effect, the investment and the operation cost of the ozone equipment system are reduced.
Drawings
Fig. 1 is a schematic structural diagram of an ozone automatic calling device of the present invention.
Fig. 2 is a schematic diagram of an ozone automatic calling device for ozone treatment circulating cooling water, which is adopted in an actual case.
In the figure, the first local support valve 1, the first communication pipe valve 3, the first remote control branch valve 4, the second local support valve 5, the second communication pipe valve 6, the second remote control branch valve 7, the first water taking pump 8, the second water taking pump 9, the first gas-water mass transfer system 10, the second gas-water mass transfer system 11, the first circulating cooling water system 12, the second circulating cooling water system 13, the first ozone generating system 14, the second ozone generating system 15 and the automatic control system.
Detailed Description
The invention will be further described with reference to the drawings and specific examples.
The invention establishes an automatic alternate calling process of ozone gas, as shown in fig. 1, through an automatic control system 15, a valve on a relevant gas path is controlled by pressing the structure switch of fig. 1 to finish the calling function of ozone gas:
local mode: when the systems are each operated in the "local mode", the systems are operated completely independently from each other, and the piping shut-off state is maintained by controlling the valve on the communication pipe 16. Switching the working state according to the start-stop system of the control logic of the self, and controlling a valve and a water pump; the water of the circulating cooling water system 11/12 is injected into the cooling water system 11/12 by the water-taking pump 7/8 through the gas-water mass transfer device 9/10
Calling mode: when the system switches to "call" mode:
if the ozone of the ozone generating system 13 used in the system 1# is fully regulated to 2#, the ozone injection amount of the circulating cooling water system 12 is multiplied. The valve on the communicating pipe 16 is switched by the automatic control system 15 to communicate ozone produced by the No. 1 system and is intensively used by the No. 2 system: opening an ozone communication valve 2 of the 1# system, a local support valve 4 and a calling branch valve 6 of the 2# system, and closing the local support valve 1 of the 1# system, the calling branch valve 3 and the ozone communication valve 5 of the 2# system;
if the ozone generated by the ozone generating system 14 used in the system # 2 is adjusted to # 1, the ozone injection amount of the circulating cooling water system 11 is multiplied. The valve on the communicating pipe 16 will be automatically switched to communicate ozone produced by the # 2 system, and the ozone is intensively supplied to the # 1 system for use: and opening the ozone communication valve 5 of the No. 2 system, the local support valve 1 of the No. 1 system and the calling branch valve 3, and closing the local support valve 4 of the No. 2 system to call the branch valve 6 and the ozone communication valve 2 of the No. 1 system.
Alternate call in/call out mode: during a set period of time (e.g., 24 hours) of the main control unit 15, all ozone generator output is concentrated and alternately added to the # 1 (or # 2) recirculating cooling water system.
As a variation of the present embodiment: 3 sets of ozone generating systems and more can be adopted to realize calling by similar devices and methods.
The automatic control system adopts a PLC, a CPU and equipment devices (such as an industrial control computer, a single-chip computer and the like) which can be used for industrial control.
The valve for controlling the gas circuit switch adopts various valves (such as an electric valve, a pneumatic valve and the like) with the function of controlling on-off.
Specific examples are described below:
the circulating cooling water of a certain power plant is treated by adopting an ozone technology. The plant is provided with 2 generator sets and corresponding cooling water systems, the water supplementing quality is complex and various, and the extreme high temperature exists in summer, so the method is adopted, the ozone generating quantity of the single generator set is configured according to the normal operation working condition during design, an ozone gas communicating pipe is arranged between the two generator sets, each generator set is provided with 2 gas-water premixing branches (one branch is used for local injection and the other branch is used for calling injection), and the automatic alternate calling of ozone gas is realized by depending on an automatic control program through arranging a valve on the communicating pipe. The flow chart of the power plant ozone alternate calling mixed injection process is shown in figure 2.
Local mode: when the systems are respectively operated in a local mode, the systems are completely independently operated, and a pipeline cutting state is kept by controlling a valve on the communicating pipe. Switching the working state according to the start-stop system of the control logic of the self, and controlling a valve and a water pump;
calling mode: when the system is switched to a calling mode, two water taking pumps are started at the calling side to improve the water taking flow so as to ensure proper air-water ratio due to multiplication of ozone injection quantity, thereby ensuring high-efficiency air-water mass transfer; meanwhile, the water taking pump is stopped at the calling side so as to reduce the energy consumption.
The valve on the communicating pipe is automatically switched according to the time sequence. If the ozone produced by the No. 1 system is regulated to the No. 2 system, the ozone produced by the No. 2 system is communicated, and the ozone is intensively supplied to the No. 2 system for use: opening valves 1Z-SV02Q, 2Z-SV01Q and 2Z-SV03Q, and closing valves 1Z-SV01Q, 1Z-SV03Q and 2Z-SV02Q; and vice versa.
Alternate call in/call out mode: after full-power rotation is started, all ozone output is concentrated and alternately added to a No. 1 (or No. 2) system according to a set time period (such as 24 hours) on an automatic control interface to treat circulating cooling water.
After the factory is designed according to the process method of the patent, the extreme working condition of sudden ammonia nitrogen wastewater discharge in the factory is born after the test of extreme high temperature in summer, and meanwhile, the cleaning coefficients of the two generator sets are superior to the design value for a long time, so that the running of the sets is safe and stable, and the investment and the running cost of ozone equipment are reduced. To sum up, in the present embodiment:
device part: an ozone gas communicating pipe and a valve system are arranged between the ozone generating systems, and the centralized calling of ozone gas is realized through the valve switching under the automatic control. Comprising the following steps: the ozone water system comprises a circulating cooling water system, an ozone generating system, a gas-water mass transfer system (for fully mixing and dissolving ozone gas in water), an automatic control system, a communicating pipe and a valve system.
The method comprises the following steps: the switching and the time sequence of each electric valve are controlled by an automatic control system, so that the flow direction of ozone gas is changed, and the realization is realized: concentrating ozone amount produced by a plurality of sets of ozone generating systems, and treating a circulating cooling water system; alternatively, the circulating cooling water systems are alternately treated in turn for a set period of time (e.g., 2 hours, 4 hours, etc.).
The foregoing is a preferred embodiment of the present invention, and various changes and modifications may be made therein by those skilled in the art without departing from the general inventive concept, and such changes and modifications should be considered as falling within the scope of the claimed invention.
Claims (1)
1. An automatic ozone calling method is characterized in that:
the ozone automatic calling device comprises at least two groups of ozone treatment circulating cooling water systems, and the ozone treatment circulating cooling water systems comprise: a circulating cooling water system and an ozone adding system respectively configured;
in a single-group ozone treatment circulating cooling water system: the ozone adding system comprises an ozone generating system, a gas-water mass transfer system and a control valve; the gas-water mass transfer system is communicated with a circulating cooling water system bypass; the ozone generating system, the local support control valve and the gas-water mass transfer system are connected in sequence; each group of ozone adding systems are connected with each other through a communicating pipe, and a communicating pipeline valve is arranged on the communicating pipe; the ozone generating system, the communicating pipeline valve, the remote control branch valve and the gas-water mass transfer system are connected in sequence; the automatic control system is in signal connection with the local branch control valve, the communication pipeline valve and the remote control branch valve;
the two sets of circulating cooling water systems are a first circulating cooling water system and a second circulating cooling water system, the first circulating cooling water system (11) is provided with a first ozone generating system (13) and a first gas-water mass transfer system (9), and the second circulating cooling water system (12) is provided with a second ozone generating system (14) and a second gas-water mass transfer system (10);
the automatic control system is used for controlling the switching and the time sequence of the local branch control valve, the communication pipeline valve and the remote control branch valve, changing the flow direction of ozone gas and realizing: concentrating ozone amount produced by a plurality of sets of ozone generating systems, and treating a circulating cooling water system; alternatively, alternately treating each circulating cooling water system in turn according to a set time period;
three modes are classified:
local mode: the first ozone treatment circulating cooling water system and the second ozone treatment circulating cooling water system independently operate, and a pipeline cut-off state is kept by controlling a valve on the ozone gas communicating pipe (16); switching the working state according to the start-stop system of the control logic of the self, and controlling a valve and a water pump; the first water taking pump and the second water taking pump are used for injecting the circulating cooling water of the respective circulating cooling water system back to the respective circulating cooling water system after passing through the first gas-water mass transfer system and the second gas-water mass transfer system;
calling mode:
m1, if all ozone generated by the first ozone treatment circulating cooling water system is transferred to the second ozone treatment circulating cooling water system: the ozone injection amount of the second circulating cooling water system (12) is multiplied, a valve on the ozone gas communicating pipe (16) is controlled and switched by the automatic control system (15), and ozone produced by the first ozone treatment circulating cooling water system is intensively supplied to the second ozone treatment circulating cooling water system for use: the first ozone communication valve (2), the second local branch valve (4) and the second remote control branch valve (6) are opened, and the first local branch valve (1), the first remote control branch valve (3) and the second ozone communication valve (5) are closed;
m2, if all ozone generated by the second ozone treatment circulating cooling water system is transferred to the first ozone treatment circulating cooling water system: the ozone injection amount of the first circulating cooling water system (11) is multiplied, a valve on the ozone gas communicating pipe (16) is controlled and switched by the automatic control system (15), and ozone produced by the second ozone treatment circulating cooling water system is intensively supplied to the first ozone treatment circulating cooling water system for use: opening a second ozone communication valve (5), a first local branch valve (1) and a first remote control branch valve (3), and closing a second local branch valve (4), a second remote control branch valve (6) and a first ozone communication valve (2);
alternate call in/call out mode:
the M1 call mode and the M2 call mode are alternately operated in time periods set by the automatic control system (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006173.3A CN110818063B (en) | 2019-10-22 | 2019-10-22 | Ozone automatic calling device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006173.3A CN110818063B (en) | 2019-10-22 | 2019-10-22 | Ozone automatic calling device and method |
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| CN110818063A CN110818063A (en) | 2020-02-21 |
| CN110818063B true CN110818063B (en) | 2023-11-21 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5785864A (en) * | 1995-06-23 | 1998-07-28 | Ajt & Associates, Inc. | Apparatus for the purification of water and method therefor |
| JP2003201105A (en) * | 2002-01-07 | 2003-07-15 | Mitsubishi Electric Corp | System for treating ozone |
| CN106064858A (en) * | 2016-07-20 | 2016-11-02 | 申昱环保科技股份有限公司 | There is the cooling circulating water system of ozonator |
| CN106896793A (en) * | 2017-03-22 | 2017-06-27 | 广东卓信环境科技股份有限公司 | A kind of process structure ozonation system based on object control |
| CN207511932U (en) * | 2017-10-19 | 2018-06-19 | 浙江问源环保科技股份有限公司 | A kind of aerator |
| CN108411337A (en) * | 2018-02-10 | 2018-08-17 | 中氧科技（广州）有限公司 | A kind of control method of array ozonization plant |
| CN210944985U (en) * | 2019-10-22 | 2020-07-07 | 上海铱钶环保科技有限公司 | Automatic ozone calling device |
-
2019
- 2019-10-22 CN CN201911006173.3A patent/CN110818063B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5785864A (en) * | 1995-06-23 | 1998-07-28 | Ajt & Associates, Inc. | Apparatus for the purification of water and method therefor |
| JP2003201105A (en) * | 2002-01-07 | 2003-07-15 | Mitsubishi Electric Corp | System for treating ozone |
| CN106064858A (en) * | 2016-07-20 | 2016-11-02 | 申昱环保科技股份有限公司 | There is the cooling circulating water system of ozonator |
| CN106896793A (en) * | 2017-03-22 | 2017-06-27 | 广东卓信环境科技股份有限公司 | A kind of process structure ozonation system based on object control |
| CN207511932U (en) * | 2017-10-19 | 2018-06-19 | 浙江问源环保科技股份有限公司 | A kind of aerator |
| CN108411337A (en) * | 2018-02-10 | 2018-08-17 | 中氧科技（广州）有限公司 | A kind of control method of array ozonization plant |
| CN210944985U (en) * | 2019-10-22 | 2020-07-07 | 上海铱钶环保科技有限公司 | Automatic ozone calling device |
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| CN110818063A (en) | 2020-02-21 |
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