CN110803809A - Treatment system for boiler makeup water - Google Patents
Treatment system for boiler makeup water Download PDFInfo
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- CN110803809A CN110803809A CN201911149379.1A CN201911149379A CN110803809A CN 110803809 A CN110803809 A CN 110803809A CN 201911149379 A CN201911149379 A CN 201911149379A CN 110803809 A CN110803809 A CN 110803809A
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- water
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- coagulation
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- 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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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a treatment system for boiler makeup water, which comprises an industrial wastewater discharge tank, a coagulation clarification tank, a coagulation medicine storage and feeding device, a No. 1 water tank, a filter, an electric adsorption device, a No. 2 water tank and a desalting unit. The coagulating and clarifying tank is connected to No. 1 water tank, and No. 1 water tank is connected to the filter through No. 1 water pump, and the clear water export of filter is connected to No. 2 water tanks through the electric adsorption equipment, and No. 2 water tanks are connected to the desalination unit through No. 2 water pumps. The coagulating and medicine storing and adding equipment is connected to the coagulating and clarifying tank, and the sewage draining ports of the coagulating and clarifying tank and the desalting unit are connected to the industrial wastewater discharging tank. The boiler feed water treatment system provided by the invention utilizes 'coagulation clarification → filtration → electric adsorption device → desalination', cancels self-cleaning filter, ultrafiltration and reverse osmosis processes, and has the advantages of small floor area, low equipment investment and operation cost, small industrial wastewater generation amount and high automation degree.
Description
Technical Field
The invention belongs to the technical field of industrial water treatment, and relates to a treatment system for boiler makeup water.
Background
The power industry is the national economy basic industry and the important energy industry, is a large household for industrial water and has great water-saving potential. On the premise of ensuring the safe and economic operation of the unit, the comprehensive utilization of water resources is actively developed so as to achieve the purposes of saving water, reducing emission, reducing power generation cost and protecting ecological environment. In a thermal power plant, industrial water mainly comprises two parts, wherein one part is circulating cooling water and is mainly used for equipment cooling; one part is boiler make-up water, which is mainly used for making up normal loss in the steam-water circulation of the thermodynamic system. With the development of high-parameter and high-capacity units, the requirements on the quality of boiler feed water are more strict.
The process flow of the boiler feedwater treatment comprises coagulation clarification → filtration → self-cleaning filter → ultrafiltration → reverse osmosis → desalination, the coagulation clarification treatment mainly aims to remove suspended matters and colloid impurities in water, the conventional equipment is a mechanical stirring clarification tank, a large amount of sludge is generated after a coagulant is added into raw water, settled sludge needs to be regularly and continuously discharged to ensure the water outlet quality of the clarification tank, self-used water is generated, the coagulation clarification equipment needs to be provided with a coagulant storage, metering and dosing system in a matching way, the filtration further reduces a small amount of fine suspended particles remained in the water through surface filtration and deep filtration, the filtration enters a reverse osmosis link when the turbidity of the filter outlet exceeds the standard, an air scrubbing and water reverse osmosis system is arranged in a matching way, the backwashing drainage and forward drainage of the filter can generate self-used water, the self-cleaning filter can also generate filter materials which run normally or are broken under the fault condition of the filtration equipment, when the pressure difference reaches a certain standard, the water backwashing can be carried out, the self-used water can generate self-used water, protein, micro-organism and organic matters with the chemical substances with the diameter of 0.002 μm-1 μm and the organic matters which are in the water, the water is not beneficial to be generated by the existing chemical ultrafiltration, the chemical precipitation treatment process, the chemical precipitation treatment process can be carried out, the scale removal of the chemical precipitation, the chemical precipitation and the chemical precipitation, the chemical precipitation of the chemical precipitation, the chemical precipitation and the chemical precipitation of the chemical precipitation, the chemical precipitation of the chemical precipitation and the chemical precipitation of the chemical precipitation, the chemical precipitation of the chemical reverse osmosis is required by the chemical reverse osmosis process can be reduced by the chemical reverse osmosis, the chemical precipitation of the chemical reverse osmosis process can be carried out of the chemical precipitation, the chemical precipitation of the chemical precipitation, the chemical precipitation of the chemical precipitation.
Disclosure of Invention
The invention aims to provide a treatment system for boiler makeup water, which simplifies the process flow of chemical water treatment, saves equipment investment and operating cost, reduces the discharge of water and industrial wastewater, reduces the chemical water utilization rate, reduces the occupied area, effectively utilizes water resources, protects the natural environment and improves the automation level of operation.
The technical scheme of the invention is as follows: a processing system for boiler make-up water, including industrial waste water discharging pool, coagulating sedimentation tank, thoughtlessly congeal and store up medicine charge equipment, No. 1 water tank, filter, electric adsorption equipment, No. 2 water tanks and desalination unit. The coagulating and clarifying tank is connected to No. 1 water tank, and No. 1 water tank is connected to the filter through No. 1 water pump, and the clear water export of filter is connected to No. 2 water tanks through the electric adsorption equipment, and No. 2 water tanks are connected to the desalination unit through No. 2 water pumps. The coagulating and medicine storing and adding equipment is connected to the coagulating and clarifying tank, and the sewage draining ports of the coagulating and clarifying tank and the desalting unit are connected to the industrial wastewater discharging tank.
The system is equipped with backwash water pipeline, air compressor machine and backwash water pump, and the filter is equipped with tuyere, backwash water entry and backwash outlet, and the air compressor machine is connected to the tuyere of filter, and backwash water pipeline is connected to the backwash water entry of filter through backwash water pump, and the backwash water outlet of filter is connected to industrial waste water drainage pond. The electric adsorption equipment is provided with a backwashing water outlet which is connected to an industrial wastewater discharge pond. The desalting unit comprises a storage device, a metering device and a regeneration device of hydrochloric acid and sodium hydroxide, and the regeneration device is connected to the desalting unit.
The electric adsorption equipment consists of a capacitance deionization adsorption module, a power supply device, a detection instrument, a controller and a pipe valve. The detection instrument comprises a conductivity meter, a temperature control instrument, a water inlet and outlet flow meter, a water inlet and outlet pressure gauge, a voltmeter and a current detection meter. The system is provided with a control unit, the control unit is in communication connection with an electric device of a No. 1 water pump, a No. 2 water pump, a backwashing water pump, an air compressor, an electric adsorption device and a regeneration device, a coagulation medicine storage and feeding device, a detection instrument and control valves of pipelines, and the treatment process of boiler makeup water is automatically controlled.
The treatment system of the boiler make-up water of the invention utilizes the treatment process of 'coagulation clarification → filtration → electric adsorption device → desalination' to cancel the self-cleaning filter, ultrafiltration and reverse osmosis process, compared with the existing chemical water treatment of boiler make-up water, the treatment system has the advantages that ① cancels the expensive ultrafiltration, reverse osmosis and the auxiliary equipment thereof, greatly reduces the floor area and the equipment investment, ② reduces the chemical self-water utilization rate and the industrial wastewater production amount, is beneficial to environmental protection, ③ reduces the operation cost, ④ improves the automation degree of the water treatment.
Drawings
FIG. 1 is a schematic flow diagram of the present invention for use in a boiler feedwater treatment system;
wherein: 1-industrial waste water discharging pool, 2-coagulation clarification tank, 3-coagulation medicine storage dosing equipment, No. 4-1 water tank, No. 5-1 water pump, 6-filter, 7-electric adsorption equipment, No. 8-2 water tank, No. 9-2 water pump, 10-desalination unit, 11-regeneration facility, 12-air compressor machine, 13-backwash water pump.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples. The scope of protection of the invention is not limited to the embodiments, and any modification made by those skilled in the art within the scope defined by the claims also falls within the scope of protection of the invention.
The treatment system for boiler make-up water of the invention is shown in figure 1 and comprises an industrial wastewater discharge tank 1, a coagulation clarification tank 2, a coagulation medicine storage and feeding device 3, a No. 1 water tank 4, a filter 6, an electric adsorption device 7, a No. 2 water tank 8, a backwashing water pipeline, an air compressor 12, a backwashing water pump 13, a desalting unit 10 and a control unit. The coagulation medicine storage dosing device 3 is connected to the coagulation clarification tank 2, and the coagulation clarification tank 2 is connected to No. 1 water tank 4, and No. 1 water tank 4 is connected to the filter 6 through No. 1 water pump 5, and the clear water export of filter is connected to No. 2 water tank 8 through the electric adsorption equipment 7, and No. 2 water tank 8 is connected to desalination unit 10 through No. 2 water pump 9. The sewage discharge ports of the coagulation and clarification tank 2 and the desalting unit 10 are connected to the industrial wastewater discharge tank 1. The filter is provided with a blast port, a backwashing water inlet and a backwashing water outlet, the air compressor 12 is connected to the blast port of the filter, the backwashing water pipeline is connected to the backwashing water inlet of the filter through the backwashing water pump 13, and the backwashing water outlet of the filter is connected to the industrial wastewater discharge pool 1. The electric adsorption equipment 7 is provided with a backwash water outlet which is connected to the industrial wastewater discharge tank 1. The desalination unit comprises a storage and metering device for hydrochloric acid and sodium hydroxide and a regeneration device 11, wherein the regeneration device is connected to the desalination unit 10.
The electric adsorption device 7 is composed of a capacitance deionization adsorption module, a power supply device, a detection instrument, a controller and a pipe valve. The detection instrument comprises a conductivity meter, a temperature control instrument, a water inlet and outlet flow meter, a water inlet and outlet pressure gauge, a voltmeter and a current detection meter. The control unit is in communication connection with the No. 1 water pump 5, the No. 2 water pump 9, the backwashing water pump 13, the air compressor 12, the electrical equipment of the electric adsorption equipment 7, the electrical equipment of the regeneration equipment 11, the coagulation medicine storage and feeding equipment 3, the detection instrument and the control valves of all pipelines. Automatically controlling the treatment process of boiler make-up water.
The working process of the treatment system for boiler make-up water comprises the following steps: raw water enters a coagulation and clarification tank 2, a coagulant is added into the coagulation and clarification tank 2 through a coagulation and medicine storage dosing device 3 to remove most suspended matters and colloidal substances, and clarified effluent enters a No. 1 water tank 4. The coagulation clarification equipment needs to discharge sewage regularly and continuously, and the sewage is self-service water and is discharged to the industrial wastewater discharge pool 1 as industrial wastewater. Clear water of the No. 1 water tank 4 is conveyed to a filter 6 through a No. 1 water pump 5, a small amount of residual fine suspended particles in water are further filtered, and effluent of the filter directly enters an electric adsorption device 7 for electric adsorption treatment. When the turbidity of the water discharged from the filter exceeds the standard, the filter is subjected to backwashing, the air compressor 12 and the backwashing water pump 13 are backwashing equipment of the filter, and the air is used for scrubbing and the water is used for backwashing. The drainage water of the filter backwashing and the positive washing drainage water is used as the self-service water and is discharged to the industrial wastewater discharge pool 1 as the industrial wastewater. The effluent of the electro-adsorption equipment enters a No. 2 water tank 8, and the backwashing water of the electro-adsorption equipment is discharged to an industrial wastewater discharge pool 1 as industrial wastewater. Fresh water in the No. 2 water tank 2 enters a desalting unit 10 through a No. 2 water pump 9, and anions and cations in the water are removed through chemical reaction by utilizing anion and cation exchange resins. When the ion exchange resin is invalid, the ion exchange resin is regenerated by utilizing the chemical reversible reaction of the ion exchange resin and using acid and alkali solution to recover the activity of the ion exchange resin. The sewage discharged by the desalting unit is self-service water and is discharged to an industrial wastewater discharge pool 1 as industrial wastewater.
The electro-adsorption equipment 7 is controlled by an automatic program to control inflow, outflow conductivity, adsorption time and electrode regeneration time, and control indexes are manually adjusted through a touch display screen, the operation of the electro-adsorption equipment is divided into three stages, namely ⑴ pre-washing stage, water samples to be treated are introduced into the electro-adsorption equipment for pre-washing, concentrated water remained in an adsorption module and a part of pipelines in the electrode regeneration stage is discharged by using raw water, ⑵ adsorption stage enters the adsorption stage after the short pre-washing is finished, a capacitor deionization adsorption module adsorbs ions in the raw water by using the surface of a charged electrode, salts in the raw water are enriched and concentrated on the surface of the electrode, namely the actual water receiving stage, ⑶ regeneration stage, the system automatically enters the electrode desorption regeneration stage after the adsorption set time is reached, and the system automatically shifts to the next period after the regeneration process is finished.
The invention is used for a treatment system of boiler make-up water, namely coagulation clarification → filtration → electric adsorption → desalination, and omits a self-cleaning filter, and complicated processes of ultrafiltration and reverse osmosis, and has the advantages that ⑴ shortens the process flow of chemical water treatment, eliminates expensive ultrafiltration, reverse osmosis and auxiliary equipment thereof, reduces the floor area by 20 percent, reduces the equipment and construction investment by 30 percent, reduces the chemical water utilization rate by 30 percent, reduces the industrial wastewater production by ⑵, reduces the chemical water utilization rate by 20 percent to 25 percent, eliminates the ultrafiltration, reverse osmosis and auxiliary equipment thereof by ⑶, reduces the maintenance workload of the equipment, reduces the labor intensity and the maintenance cost of operation and maintenance personnel, reduces the unit price of ⑷ demineralized water per ton by about 5 yuan, reduces the operation cost, and improves the automation degree of operation by ⑸.
Claims (7)
1. A treatment system for boiler makeup water, characterized by: the system comprises an industrial wastewater discharge tank (1), a coagulation clarification tank (2), a coagulation medicine storage dosing device (3), a No. 1 water tank (4), a filter (6), an electric adsorption device (7), a No. 2 water tank (8) and a desalting unit (10), wherein the coagulation clarification tank (2) is connected to the No. 1 water tank (4), the No. 1 water tank (4) is connected to the filter (6) through a No. 1 water pump (5), a clear water outlet of the filter is connected to the No. 2 water tank (8) through the electric adsorption device (7), and the No. 2 water tank (8) is connected to the desalting unit (10) through a No. 2 water pump (9); the coagulation medicine storage dosing equipment (3) is connected to the coagulation clarification tank (2), and sewage draining outlets of the coagulation clarification tank (2) and the desalting unit (10) are connected to the industrial wastewater discharge tank (1).
2. The treatment system for boiler feedwater according to claim 1, characterized by: the system is provided with a backwashing water pipeline, an air compressor (12) and a backwashing water pump (13), the filter is provided with a blast port, a backwashing water inlet and a backwashing water outlet, the air compressor (12) is connected to the blast port of the filter, the backwashing water pipeline is connected to the backwashing water inlet of the filter through backwashing water (13), and the backwashing water outlet of the filter is connected to the industrial wastewater discharge pool (1).
3. The treatment system for boiler feedwater according to claim 1, characterized by: the electric adsorption equipment (7) is provided with a backwashing water outlet which is connected to the industrial wastewater discharge tank (1).
4. The treatment system for boiler feedwater according to claim 1, characterized by: the desalting unit comprises a storage device, a metering device and a regeneration device (11) of hydrochloric acid and sodium hydroxide, and the regeneration device (11) is connected to the desalting unit (10).
5. The treatment system for boiler feedwater according to claim 1, characterized by: the electric adsorption equipment (7) is composed of a capacitance deionization adsorption module, a power supply device, a detection instrument, a controller and a pipe valve.
6. The treatment system for boiler feedwater according to claim 5, characterized by: the detection instrument comprises a conductivity meter, a temperature control instrument, a water inlet and outlet flow meter, a water inlet and outlet pressure gauge, a voltmeter and a current detection meter.
7. The treatment system for boiler feedwater according to claim 5, characterized by: the system is provided with a control unit which is in communication connection with an electric device of a No. 1 water pump (5), a No. 2 water pump (9), a backwashing water pump (13), an air compressor (12), an electric adsorption device (7) and a regeneration device (11), a coagulation medicine storage and feeding device (3), a detection instrument and control valves of all pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911149379.1A CN110803809A (en) | 2019-11-21 | 2019-11-21 | Treatment system for boiler makeup water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911149379.1A CN110803809A (en) | 2019-11-21 | 2019-11-21 | Treatment system for boiler makeup water |
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| Publication Number | Publication Date |
|---|---|
| CN110803809A true CN110803809A (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911149379.1A Pending CN110803809A (en) | 2019-11-21 | 2019-11-21 | Treatment system for boiler makeup water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548759A (en) * | 2021-08-02 | 2021-10-26 | 张韦欣 | Flocculation type electric adsorption softening and concentrating device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616962A (en) * | 2012-03-30 | 2012-08-01 | 中国石油化工股份有限公司 | Deep stage treatment method for industrial wastewater |
| CN209456210U (en) * | 2018-12-28 | 2019-10-01 | 河北涿州京源热电有限责任公司 | One kind is for the personal reasonable reclaiming system of water of Boiler water Feeding System |
-
2019
- 2019-11-21 CN CN201911149379.1A patent/CN110803809A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616962A (en) * | 2012-03-30 | 2012-08-01 | 中国石油化工股份有限公司 | Deep stage treatment method for industrial wastewater |
| CN209456210U (en) * | 2018-12-28 | 2019-10-01 | 河北涿州京源热电有限责任公司 | One kind is for the personal reasonable reclaiming system of water of Boiler water Feeding System |
Non-Patent Citations (1)
| Title |
|---|
| 杨作清等: "《钢铁工业水处理实用技术与应用》", 30 June 2015, 北京：冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548759A (en) * | 2021-08-02 | 2021-10-26 | 张韦欣 | Flocculation type electric adsorption softening and concentrating device |
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Application publication date: 20200218 |