CN106698774A - Ultrahigh-concentration-multiple circulating cooling water treatment system and circulating cooling water treatment method - Google Patents
Ultrahigh-concentration-multiple circulating cooling water treatment system and circulating cooling water treatment method Download PDFInfo
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- CN106698774A CN106698774A CN201710053115.0A CN201710053115A CN106698774A CN 106698774 A CN106698774 A CN 106698774A CN 201710053115 A CN201710053115 A CN 201710053115A CN 106698774 A CN106698774 A CN 106698774A
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- cooling water
- concentration
- water
- circulating cooling
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses an ultrahigh-concentration-multiple circulating cooling water treatment system. The ultrahigh-concentration-multiple circulating cooling water treatment system comprises a circulating cooling water system and a bypath treatment system which is circularly connected with the circulating cooling water system, wherein the bypath treatment system comprises a filtering unit and a softening unit which are connected in sequence. The invention discloses a circulating cooling water treatment method. The circulating cooling water treatment method comprises the following steps: (1) concentrating circulating cooling water into ultrahigh-concentration-multiple circulating cooling water through the circulating cooling water system, wherein the concentration multiple reaches 20 to 1000 times; (2) filtering the ultrahigh-concentration-multiple circulating cooling water by adopting a bypass filtering method; and (3) softening the filtered ultrahigh-concentration-multiple circulating cooling water obtained by the step (2) by adopting an ion exchange method. According to the ultrahigh-concentration-multiple circulating cooling water treatment system and the circulating cooling water treatment method, the circulating cooling water is filtered and softened online through the bypath treatment system, and normal operation is realized under the condition of the ultrahigh-concentration-multiple circulating cooling water (with the concentration multiple of 20 to 1000 times); the water saving rate reaches 85 percent or more; and the corrosion prevention and microorganism inhibition effects, low cost, environment friendliness and feasibility are realized.
Description
Technical field
The present invention relates to technology on circulating cooling water treatment field, more particularly to superelevation cycles of concentration circulating water cooling treatment
System and method for treating circulating cooling water.
Background technology
In the fresh water that the mankind all consume, cooling water accounts for 5%, is only second to irrigation water and is in second place.
In industrial water, the consumption of cooling water ranks first, typically more than 60%.The consumption of cooling water is accounted in chemical industry
65%, 80% is accounted in the oil industry.So, cooling water just turns into the important goal of water saving.Prior art finds that raising is followed
Ring cooling water system cycles of concentration can reduce the consumption of circulating water system, and saving water resource can also reduce water amount of blowdown,
So as to reduce the treating capacity of pollution and waste water to environment.It is exemplified below：
Assuming that the quantity of circulating water R of recirculating cooling water system is 10000m3/ h, cooling tower imports and exports 10 DEG C of the temperature difference, then different
Cycles of concentration K and amount of makeup water M, the relation such as table 1 below of water amount of blowdown B：
The recirculated water cycles of concentration of table 1 and amount of makeup water, the relation of water amount of blowdown
As can be seen from the above table, with the increase of recirculated cooling water cycles of concentration K, the amount of makeup water of recirculating cooling water system
M and water amount of blowdown B are constantly reduced.But improve cycles of concentration too much in actual moving process, can make hard in recirculated water
Degree, basicity and turbidity are too high, and the fouling tendency increase of water is a lot, causes recirculating cooling water system dirtiness resistance value to raise,
Heat exchange efficiency reduction, energy consumption are increased.In the prior art above-mentioned high concentration multiple circulating cooling is solved by carrying out softening to moisturizing
The operation problem of water, but the moisturizing softening plant can not give system and timely supply water, it is necessary to invest standby in backwash, regeneration
Unit reaches the purpose of timely moisturizing；The softening plant is still softening water supply when another External System does not need moisturizing, then need to set
Softening water tank and elevator pump, these schemes cause the problem that investment is high, floor space is big, control is complicated, operating cost is high.
For a long time, limited by circulating water treatment technology, because recirculated water runs under the conditions of high concentration multiple, caused
Operation water quality index exceedes circulating water treatment process or the applicable condition of water quality of method, treatment function failure.At present, China's collection
Middle air-conditioning cooling circulating water operation cycles of concentration is general between 2-4, and industry cooling circulation water running concentrated water multiple is general in 3-5
Between.Thus want to save more cooling waters, it is necessary to be improved existing Water Treatment in Circulating Cooling System.
The present invention is exactly under conditions of above-mentioned background technology, to found that a kind of new to can be used for the circulation of superelevation cycles of concentration cold
But water treatment system and method for treating circulating cooling water, real to belong to one of current important research and development problem.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of superelevation cycles of concentration Water Treatment in Circulating Cooling System, makes it can
Normally run under the conditions of cycles of concentration is more than 20, water-saving rate is greatly improved, so as to overcome existing circulating water cooling treatment system
The deficiency of system.
In order to solve the above technical problems, the present invention provides a kind of superelevation cycles of concentration Water Treatment in Circulating Cooling System, including
Recirculating cooling water system and the bypass processing system being connected with recirculating cooling water system circulation, the bypass process processing system
System includes the filter element and pliable cell that are sequentially connected.
Used as a modification of the present invention, the filter element uses disc filter, more medium filter or suction type
One or more in filter.
Further improve, the pliable cell uses Na-ion exchanger or cation and anion exchange device.
Further improve, the circulating line of the recirculating cooling water system is provided with circulating pump, condenser and cooling tower,
The water inlet of the bypass processing system is arranged on the pipeline between the condenser and cooling tower, the bypass
The delivery port of processing system is arranged on the pipeline between the cooling tower and circulating pump.
Further improve, the cooling tower is also associated with water replanishing device.
Further improve, the circulating line of the recirculating cooling water system is provided with circulating pump and devaporizer,
The water inlet and delivery port of the bypass processing system are separately positioned on outlet conduit and the water inlet of the circulating pump
On pipeline.
Further improve, the devaporizer is also associated with water replanishing device.
Further improve, the cycles of concentration of the super High Concentration Circulating Cooling Water is 20~1000 times.
The present invention also provides a kind of method for treating circulating cooling water, and the method for treating circulating cooling water includes：
(1) recirculated cooling water is condensed into by super High Concentration Circulating Cooling Water using recirculating cooling water system, its concentration
Multiple is up to 20~1000 times；
(2) the super High Concentration Circulating Cooling Water is filtered using bypath filter method；
(3) the super High Concentration Circulating Cooling Water that step (2) is filtrated to get is softened using ion-exchange.
Further improve, the pH value of the super High Concentration Circulating Cooling Water that the step (1) is formed is 9~10, and its
The concentration ＞ 200mg/L of middle silica；
Super High Concentration Circulating Cooling Water after the step (3) softens goes out the water hardness≤0.03mmol/L.
After such design, the present invention at least has advantages below：
The present invention is entered using the super High Concentration Circulating Cooling Water in bypassing processing system to the recirculating cooling water system
Row filtering and soften, the dirts such as suspension, colloidal material, biological clay in recirculated cooling water are not remove only, also remove
The calcium ions and magnesium ions of hardness dirt are formed in recirculated cooling water, good solving when super High Concentration Circulating Cooling Water is run brings
Dirtiness resistance value raise, heat exchange efficiency reduction, energy consumption increase defect.The present invention not only overcomes traditional handicraft and moisturizing is entered
The not continuous service problem that row softens, also solves the recirculating cooling water system to supplementing the particular/special requirement of water water quality, is non-biography
System water source is directly used in recirculated cooling water moisturizing there is provided technical feasibility, completely abolishes supplement water treatment facilities, significantly
Reduce construction investment cost and operating cost.
Increase of the present invention based on recirculated cooling water cycles of concentration, the amount of makeup water and water amount of blowdown of recirculating cooling water system
The basic principle for all constantly reducing, breaks through traditional idea, realizes that (cycles of concentration reaches 20- in super High Concentration Circulating Cooling Water
1000 times) under conditions of run circular water treating system, its water-saving rate is reached more than 85%.And using day in recirculated water
Right material composition silica and condition of water quality, realize anti-corrosion and suppress the effect of microorganism, and make its water amount of blowdown seldom, also
Secondary pollution is not resulted in, environmental protection is feasible.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention, below
With reference to accompanying drawing, the present invention is described in further detail with specific embodiment.
Fig. 1 is the structural representation of superelevation cycles of concentration Water Treatment in Circulating Cooling System embodiment one of the present invention；
Fig. 2 is the structural representation of superelevation cycles of concentration Water Treatment in Circulating Cooling System embodiment two of the present invention.
Specific embodiment
Embodiment one
Referring to the drawings shown in 1, Water Treatment in Circulating Cooling System of the present invention, including recirculating cooling water system and cold with the circulation
But the bypass processing system that water system circulation is connected.
The recirculating cooling water system belongs to open type cooling circulating water system, and its circulating line is provided with circulating pump, condensation
Device and cooling tower.The cooling tower is also associated with water replanishing device.The water inlet of the bypass processing system be arranged on the condenser with it is cold
But on the pipeline between tower, the delivery port of the bypass processing system is arranged on the pipeline between the cooling tower and circulating pump.
Processing system is bypassed in the present invention includes the filter element and pliable cell that are sequentially connected.Wherein, filter element is adopted
With one or more in disc filter, more medium filter or suction type filter, for removing recirculated cooling water in
Suspension, colloidal material, biological clay, so as to realize excluding the purpose of dirt in recirculated cooling water；Pliable cell uses sodium
Ion-exchanger or cation and anion exchange device, are likely to form the calcium ions and magnesium ions of hardness dirt in recirculated cooling water for removing, and make soft
That changes Posterior circle cooling water goes out the water hardness≤0.03mmol/l, so as to avoid the formation of hardness dirt in recirculated cooling water.So pass through
Cross filtering and softening of the bypass processing system to recirculated cooling water, after can avoiding excessively improving recirculated water cycles of concentration, the circulation
Hardness, basicity and turbidity are too high in cooling water, and the recirculating cooling water system dirt resistance is raised, heat exchange efficiency is reduced, energy
Consume the problem for increasing.
It is pointed out that in the recirculating cooling water system acceptable super High Concentration Circulating Cooling Water concentration times
Number is 20~1000 times, can not only reach water-saving rate more than 85%, and because recirculated cooling water is under superelevation cycles of concentration
During operation (20-1000 times), with the evaporation of water, dissolved matter is constantly concentrated in water, wherein naturally occurring silica
Also the concentration of superelevation multiple has been obtained.When soluble silica is through highly enriched (＞ 200mg/L) and in the bar of pH high (9~10)
Under part, multi-silicate and cataloid are can be grouped to, they can generate nothing in the metal surface in the recirculating cooling water system
Various metals (carbon steel, stainless steel, galvanized iron and copper etc.) are had corrosion inhibition by the diaphragm in hole, therefore, so highly enriched
Under multiple, the super High Concentration Circulating Cooling Water will not cause the energy consumption of the recirculating cooling water system to increase, and also have anti-
Rotten effect.
Further, since the key component of the microorganism such as bacterium, virus and spore is polymerized by amino acid, core propylhomoserin, it
Presence it is closely related with the pH and salinity (TDS) of water environment.In the recirculated cooling water of such high concentration multiple, the circulation
Under the pH (9~10) and TDS (>=5000) condition of water quality of water, peptide bond hydrolysis in microorganism, its bioactivity is suppressed, so
Environment can be referred to as biological torpescence area.Therefore, when being run under the conditions of recirculated cooling water superelevation cycles of concentration, almost do not have
Microorganism problem, also need not just add the chemical treatment medicament such as inhibition antiscale sterilization, substantially reduce operating cost.
Embodiment two
The present embodiment two is that the recirculating cooling water system belongs to evaporation cooling circulating water system with the difference of embodiment one
System, as shown in Figure 2, its circulating line is provided with circulating pump and devaporizer.The water inlet of the bypass processing system and go out
The mouth of a river is separately positioned on the outlet conduit and inlet channel of the circulating pump.And the devaporizer is also associated with water replanishing device.
Other parts are identical with embodiment one, will not be repeated here.
More excellent embodiment is：The water inlet and water outlet of pliable cell also set in above-described embodiment one and embodiment two
There is by-pass flow path, the by-pass flow path is provided with valve.Can so choose whether to need according to the actual water quality situation of recirculated cooling water
It is softened, flexibly control, it is cost-effective.
The method for treating circulating cooling water of the above-mentioned recirculating cooling water system of present invention application, i.e., using the circulating cooling water system
Recirculated cooling water is condensed into system the recirculated cooling water of superelevation cycles of concentration, and its cycles of concentration reaches 20~1000 times.The concentration
Multiple, far beyond cycles of concentration in the prior art to circulation water running, is to have broken conventional circulating water treatment in the art
Pattern, and it can reach the normal operation of the circular water treating system, mainly also comprise the following steps：
(1) the super High Concentration Circulating Cooling Water is filtered using bypath filter method, to remove recirculated cooling water
In the dirt such as suspension, colloidal material and biological clay.
(2) the above-mentioned super High Concentration Circulating Cooling Water being filtrated to get is softened using ion-exchange, is such as made
Go out the water hardness≤0.03mmol/L in super High Concentration Circulating Cooling Water after softening, it is to avoid the formation of hardness dirt.
Meanwhile, the pH value of the super High Concentration Circulating Cooling Water after being concentrated through superelevation is 9~10, and wherein silica
Concentration ＞ 200mg/L, according to the characteristic of silica, the metal surface in the recirculating cooling water system generates non-porous protection
Film, you can play corrosion-resistant effect, and may also function as preventing the effect of growth of microorganism with this understanding.
Increase of the present invention based on recirculated cooling water cycles of concentration, the amount of makeup water and water amount of blowdown of recirculating cooling water system
The basic principle for all constantly reducing, and traditional idea is broken through, realize being run under conditions of super High Concentration Circulating Cooling Water
Circular water treating system, its water-saving rate is reached more than 85%.
The present invention realizes anti-corrosion and suppresses micro- life also using natural materials composition silica and condition of water quality in recirculated water
The effect of thing, and its draining is not had secondary pollution.
The present invention is solved to be carried out softening in the presence of investment height, big floor space, control complexity, fortune in the prior art to moisturizing
The problem of row high cost.The present invention also sets filter element by pliable cell front end, not only solves pliable cell water inlet
The water quality requirement of turbidity, is that non-traditional water source is directly used in recirculated cooling water moisturizing while being had no special requirements to supplement water water quality
There is provided technical feasibility, supplement water treatment facilities is completely abolished, substantially reduce construction investment cost and operating cost.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (10)
1. a kind of superelevation cycles of concentration Water Treatment in Circulating Cooling System, it is characterised in that including recirculating cooling water system and with institute
The bypass processing system of recirculating cooling water system circulation connection is stated, the bypass treatment processing system includes the filtering being sequentially connected
Unit and pliable cell.
2. superelevation cycles of concentration Water Treatment in Circulating Cooling System according to claim 1, it is characterised in that the filtering list
Unit is using one or more in disc filter, more medium filter or suction type filter.
3. superelevation cycles of concentration Water Treatment in Circulating Cooling System according to claim 1, it is characterised in that the softening list
Unit uses Na-ion exchanger or cation and anion exchange device.
4. the superelevation cycles of concentration Water Treatment in Circulating Cooling System according to any one of claims 1 to 3, it is characterised in that
The circulating line of the recirculating cooling water system is provided with circulating pump, condenser and cooling tower,
The water inlet of the bypass processing system is arranged on the pipeline between the condenser and cooling tower, the bypass treatment
The delivery port of system is arranged on the pipeline between the cooling tower and circulating pump.
5. superelevation cycles of concentration Water Treatment in Circulating Cooling System according to claim 4, it is characterised in that the cooling tower
It is also associated with water replanishing device.
6. the superelevation cycles of concentration Water Treatment in Circulating Cooling System according to any one of claims 1 to 3, it is characterised in that
The circulating line of the recirculating cooling water system is provided with circulating pump and devaporizer,
The water inlet and delivery port of the bypass processing system are separately positioned on the outlet conduit and inlet channel of the circulating pump
On.
7. superelevation cycles of concentration Water Treatment in Circulating Cooling System according to claim 6, it is characterised in that the evaporation is cold
But device is also associated with water replanishing device.
8. superelevation cycles of concentration Water Treatment in Circulating Cooling System according to claim 1, it is characterised in that the superelevation is dense
The cycles of concentration of demagnification number recirculated cooling water is 20~1000 times.
9. a kind of method for treating circulating cooling water, it is characterised in that the method for treating circulating cooling water includes：
(1) recirculated cooling water is condensed into by super High Concentration Circulating Cooling Water using recirculating cooling water system, its cycles of concentration
Up to 20~1000 times；
(2) the super High Concentration Circulating Cooling Water is filtered using bypath filter method；
(3) the super High Concentration Circulating Cooling Water that step (2) is filtrated to get is softened using ion-exchange.
10. method for treating circulating cooling water according to claim 9, it is characterised in that the superelevation that the step (1) is formed
The pH value of cycles of concentration recirculated cooling water is 9~10, and the wherein concentration ＞ 200mg/L of silica；
Super High Concentration Circulating Cooling Water after the step (3) softens goes out the water hardness≤0.03mmol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053115.0A CN106698774A (en) | 2017-01-24 | 2017-01-24 | Ultrahigh-concentration-multiple circulating cooling water treatment system and circulating cooling water treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710053115.0A CN106698774A (en) | 2017-01-24 | 2017-01-24 | Ultrahigh-concentration-multiple circulating cooling water treatment system and circulating cooling water treatment method |
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| CN106698774A true CN106698774A (en) | 2017-05-24 |
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| CN201710053115.0A Withdrawn CN106698774A (en) | 2017-01-24 | 2017-01-24 | Ultrahigh-concentration-multiple circulating cooling water treatment system and circulating cooling water treatment method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362428A (en) * | 2018-12-26 | 2020-07-03 | 苏州永峰联环保科技有限公司 | Circulating water treatment process and circulating water treatment device for cooling tower |
| CN111573900A (en) * | 2020-05-29 | 2020-08-25 | 中国水利水电科学研究院 | Dynamic regulation and control system and method for concentration multiple of circulating cooling water tower |
| CN113379171A (en) * | 2021-08-16 | 2021-09-10 | 中冶节能环保有限责任公司 | Method and device for allocating open-circuit circulating water system |
| CN114735771A (en) * | 2022-03-29 | 2022-07-12 | 北京科净源科技股份有限公司 | Water quality control method for cooling circulating water system |
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| JPH0972693A (en) * | 1995-06-26 | 1997-03-18 | Mitsubishi Plastics Ind Ltd | Managing method for cooling tower |
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| CN1760136A (en) * | 2004-10-15 | 2006-04-19 | 中国科学院生态环境研究中心 | A kind of industrial water system clean preparation method that comprises recirculated cooling water and boiler water supply |
| CN205313290U (en) * | 2016-01-19 | 2016-06-15 | 沧州信昌化工股份有限公司 | Cooling circulating water treatment system that can reequip on line |
| CN206580684U (en) * | 2017-01-24 | 2017-10-24 | 汪传发 | A kind of superelevation cycles of concentration Water Treatment in Circulating Cooling System |
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2017
- 2017-01-24 CN CN201710053115.0A patent/CN106698774A/en not_active Withdrawn
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| JPH0972693A (en) * | 1995-06-26 | 1997-03-18 | Mitsubishi Plastics Ind Ltd | Managing method for cooling tower |
| CN1522974A (en) * | 2003-09-11 | 2004-08-25 | 浙江大学 | By-pass flow process for treating industrial cyclic cooling water |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111362428A (en) * | 2018-12-26 | 2020-07-03 | 苏州永峰联环保科技有限公司 | Circulating water treatment process and circulating water treatment device for cooling tower |
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| CN111573900B (en) * | 2020-05-29 | 2021-12-14 | 中国水利水电科学研究院 | Dynamic regulation and control system and method for concentration multiple of circulating cooling water tower |
| CN113379171A (en) * | 2021-08-16 | 2021-09-10 | 中冶节能环保有限责任公司 | Method and device for allocating open-circuit circulating water system |
| CN113379171B (en) * | 2021-08-16 | 2022-01-25 | 中冶节能环保有限责任公司 | Method and device for allocating open-circuit circulating water system |
| CN114735771A (en) * | 2022-03-29 | 2022-07-12 | 北京科净源科技股份有限公司 | Water quality control method for cooling circulating water system |
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Application publication date: 20170524 |
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