CN111099764A - Boiler water treatment system - Google Patents
Boiler water treatment system Download PDFInfo
- Publication number
- CN111099764A CN111099764A CN201811271314.XA CN201811271314A CN111099764A CN 111099764 A CN111099764 A CN 111099764A CN 201811271314 A CN201811271314 A CN 201811271314A CN 111099764 A CN111099764 A CN 111099764A
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- Prior art keywords
- water
- unit
- filter
- fine sand
- natural
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000008239 natural water Substances 0.000 claims abstract description 43
- 239000004576 sand Substances 0.000 claims abstract description 34
- 238000011001 backwashing Methods 0.000 claims abstract description 25
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims abstract description 16
- 239000010865 sewage Substances 0.000 claims abstract description 4
- 238000004062 sedimentation Methods 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract description 6
- 239000008394 flocculating agent Substances 0.000 description 13
- 239000002351 wastewater Substances 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 10
- 238000005189 flocculation Methods 0.000 description 6
- 230000016615 flocculation Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 208000028659 discharge Diseases 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
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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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
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)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a boiler water treatment system, which comprises a natural water pretreatment unit, a filtering unit, a reverse osmosis membrane group unit, a water softening unit and a deoxidizing unit which are sequentially connected, wherein the filtering unit comprises a fine sand filter, an activated carbon filter and an ultrafilter which are sequentially connected, the ultrafilter and the reverse osmosis membrane group unit are connected with a backwashing unit, the treatment system comprises a backwashing water collecting tank, a water inlet of the backwashing water collecting tank is connected with backwashing water outlets of the ultrafilter and the reverse osmosis membrane group unit, and a water outlet of the backwashing water collecting tank is respectively connected with the natural water pretreatment unit, the fine sand filter and the activated carbon filter. Compared with the prior art, the invention saves water resources and also reduces the cost of sewage discharge and treatment.
Description
Technical Field
The invention relates to the technical field of boilers, in particular to a boiler water treatment system.
Background
The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy. In order to ensure the long service life of the boiler, the boiler inlet water must be purified to remove impurities such as small particle suspended matters, organic matters, salts and the like in the water.
The existing boiler water treatment system mostly adopts a mode of filtration and reverse osmosis, the filtration comprises the steps of sand filtration, activated carbon filtration, ultrafiltration and the like, and is used for removing small particle suspended matters, and the reverse osmosis is used for removing inorganic salts. Meanwhile, in order to ensure a long service life of the system, the filtration unit and the reverse osmosis unit must be backwashed. This results in a large amount of waste water. About 400 tons of backwash wastewater is generated, based on 1000 tons of total water used per day for the boiler. At present, the part of wastewater enters a sewage treatment station for treatment and then is subjected to nano-tube discharge, so that not only is the water resource wasted, but also the cost of sewage treatment and discharge is increased.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing a boiler water treatment system for saving water.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a boiler water processing system, this processing system is including the natural water pretreatment unit, filter unit, reverse osmosis membrane group unit, water softening unit and the deoxidization unit that connect gradually, filter unit is including the fine sand filter, activated carbon filter and the ultrafilter that connect gradually, ultrafilter and reverse osmosis membrane group unit and back flush unit connection, processing system includes a backwash water collecting pit, the water inlet of backwash water collecting pit and the backwash water exit linkage of ultrafilter and reverse osmosis membrane group unit, the delivery port of backwash water collecting pit is connected with natural water pretreatment unit, fine sand filter and activated carbon filter respectively. Although the backwashing wastewater generated in the ultrafiltration and reverse osmosis links can not be directly used as water for treating boiler water, the SS index of suspended matters is not higher than 20 mg/L, and the wastewater can be collected for backwashing a fine sand filter and an activated carbon filter, so that backwashing of the two filters can be completed without consuming extra clean water. Meanwhile, the redundant wastewater in the backwashing water collecting tank and the backwashing wastewater generated in the fine sand filter and the activated carbon filter can be discharged into a natural water pretreatment unit for pretreatment (mainly sedimentation) and finally used as boiler water, so that pumping of natural water is reduced.
The natural pretreatment of water unit flocculant including the flocculant that connects gradually add medicinal cupping and sedimentation tank, the flocculant adds the medicinal cupping and is connected with natural water, the sedimentation tank is connected with the water inlet of fine sand filter, the bottom of sedimentation tank is equipped with the drain, mainly adopts flocculation and the mode of nature settlement in natural pretreatment of water unit, detach the tiny particle suspended solid and the flocculation thing in the natural water.
The top of flocculating agent dosing tank be equipped with flocculating agent dosing mouth and natural water import, the bottom of flocculating agent dosing tank is equipped with the delivery port, the inside of flocculating agent dosing tank is equipped with the stirring rake, this setting can make flocculating agent and natural water intensive mixing, abundant flocculation.
And the water outlet of the backwashing water collection tank is connected with the sedimentation tank.
The top of fine sand filter and active carbon filter be equipped with the natural water inlet, the upper portion lateral wall is equipped with the backwash water export, the bottom of fine sand filter is equipped with from natural water export and backwash water entry, the natural water entry linkage sedimentation tank of fine sand filter, the natural water exit linkage active carbon filter's of fine sand filter natural water entry, active carbon filter's natural water exit linkage ultrafilter, the delivery port of fine sand filter and active carbon filter's backwash water entry linkage backwash water catch pit, fine sand filter and active carbon filter's backwash water exit linkage sedimentation tank.
A security filter is arranged between the ultrafilter and the reverse osmosis membrane module unit.
Compared with the prior art, the beneficial effects of the invention are embodied in the following aspects:
(1) the water source waste can be effectively reduced, 400 tons of water are saved every day, the cost is saved by 1000 yuan every day according to the cost of clean water of 2.5 yuan/ton, and 1000 × 330 is 330,000 yuan every year.
The cost of wastewater treatment and the cost of wastewater discharge treatment (2.34 yuan/ton) are reduced, 400 x 2.34 to 936 yuan/day and 30 ten thousand yuan per year.
Drawings
FIG. 1 is a schematic diagram of the connection of the present invention.
The device comprises a flocculating agent dosing tank 1, a settling tank 2, a fine sand filter 3, an activated carbon filter 4, an ultrafilter 5, a reverse osmosis membrane group unit 6, a water softening unit 7, a deoxygenation unit 8, a backwashing water collecting tank 9, a backwashing unit 10, a stirring paddle 11 and a security filter 12.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
The utility model provides a boiler water processing system, this processing system is including the natural water pretreatment unit that connects gradually, the filter unit, reverse osmosis membrane group unit 6, water softening unit 7 and deoxidization unit 8, the filter unit is including the fine sand filter 3 that connects gradually, activated carbon filter 4 and ultrafilter 5, ultrafilter 5 and reverse osmosis membrane group unit 6 are connected with back flush unit 10, processing system includes a backwash water collecting pit 9, the water inlet of backwash water collecting pit 9 and the backwash water exit linkage of ultrafilter 5 and reverse osmosis membrane group unit 6, the delivery port of backwash water collecting pit 9 respectively with natural water pretreatment unit, fine sand filter 3 and activated carbon filter 4 are connected. Although the backwashing wastewater generated in the ultrafiltration and reverse osmosis links can not be directly used as water for treating boiler water, the SS index of suspended matters is not higher than 20 mg/L through tests, and the backwashing wastewater can be collected and used for backwashing the fine sand filter 3 and the activated carbon filter 4, so that backwashing of the two filters can be completed without consuming extra clean water. Meanwhile, the redundant wastewater in the backwashing water collection tank 9 and the backwashing wastewater generated in the fine sand filter 3 and the activated carbon filter 4 can be discharged into a natural water pretreatment unit for pretreatment (mainly sedimentation) and finally used as boiler water, so that pumping of natural water is reduced.
The natural water pretreatment unit includes flocculating agent 11 and sedimentation tank 2 that connect gradually, and flocculating agent 11 adds the medicinal tank and is connected with the natural water, and sedimentation tank 2 is connected with the water inlet of fine sand filter 3, and sedimentation tank 2's bottom is equipped with the drain, mainly adopts flocculation and the mode of natural settling in natural water pretreatment unit, detach the tiny particle suspended solid and the flocculation thing in the natural water.
The top that the flocculating agent adds medicinal cupping 11 is equipped with flocculating agent and adds medicine mouth and natural water import, and the bottom that the flocculating agent adds medicinal cupping 11 is equipped with the delivery port, and the inside that the flocculating agent adds medicinal cupping 11 is equipped with stirring rake 11, should set up and can make flocculating agent and natural water intensive mixing, abundant flocculation.
The water outlet of the backwashing water collection tank 9 is connected with the sedimentation tank 2.
The top of fine sand filter 3 and active carbon filter 4 is equipped with the natural water inlet, the upper portion lateral wall is equipped with the backwash water export, the bottom of fine sand filter 3 is equipped with natural water export and backwash water entry, fine sand filter 3's natural water entry linkage sedimentation tank 2, fine sand filter 3's natural water exit linkage active carbon filter 4's natural water entry, active carbon filter 4's natural water exit linkage ultrafilter 5, fine sand filter 3 and active carbon filter 4's backwash water entry linkage backwash water collecting pit 9's delivery port, fine sand filter 3 and active carbon filter 4's backwash water exit linkage sedimentation tank 2.
A cartridge filter 12 is arranged between the ultrafilter 5 and the reverse osmosis membrane module unit 6.
Claims (6)
1. The utility model provides a boiler water processing system, this processing system is including the natural water pretreatment unit, filter unit, reverse osmosis membrane group unit, water softening unit and the deoxidization unit that connect gradually, filter unit is including the fine sand filter, activated carbon filter and the ultrafilter that connect gradually, ultrafilter and reverse osmosis membrane group unit are connected with the back flush unit, a serial communication port, processing system includes a backwash water collecting pit, the backwash water outlet connection of the water inlet of backwash water collecting pit and ultrafilter and reverse osmosis membrane group unit, the delivery port of backwash water collecting pit is connected with natural water pretreatment unit, fine sand filter and activated carbon filter respectively.
2. The boiler water treatment system according to claim 1, wherein the natural water pretreatment unit comprises a flocculant dosing tank and a sedimentation tank which are connected in sequence, the flocculant dosing tank is connected with natural water, the sedimentation tank is connected with a water inlet of a fine sand filter, and a sewage discharge outlet is arranged at the bottom of the sedimentation tank.
3. The boiler water treatment system according to claim 2, wherein a flocculant dosing port and a natural water inlet are formed in the top of the flocculant dosing tank, a water outlet is formed in the bottom of the flocculant dosing tank, and a stirring paddle is arranged inside the flocculant dosing tank.
4. A boiler water treatment system as claimed in claim 2, characterized in that the outlet of said backwash water collection tank is connected to the sedimentation tank.
5. The boiler water treatment system according to claim 2, wherein a natural water inlet is arranged at the top of the fine sand filter and the activated carbon filter, a backwashing water outlet is arranged on the side wall of the upper portion, a natural water outlet and a backwashing water inlet are arranged at the bottom of the fine sand filter, the natural water inlet of the fine sand filter is connected with the sedimentation tank, the natural water outlet of the fine sand filter is connected with the natural water inlet of the activated carbon filter, the natural water outlet of the activated carbon filter is connected with the ultrafilter, the backwashing water inlet of the fine sand filter and the activated carbon filter is connected with the water outlet of the backwashing water collection tank, and the backwashing water outlet of the fine sand filter and the activated carbon filter is connected with the sedimentation tank.
6. The boiler water treatment system according to claim 1, wherein a cartridge filter is arranged between the ultrafilter and the reverse osmosis membrane module unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271314.XA CN111099764A (en) | 2018-10-29 | 2018-10-29 | Boiler water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271314.XA CN111099764A (en) | 2018-10-29 | 2018-10-29 | Boiler water treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111099764A true CN111099764A (en) | 2020-05-05 |
Family
ID=70419599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811271314.XA Pending CN111099764A (en) | 2018-10-29 | 2018-10-29 | Boiler water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111099764A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671095A (en) * | 2009-09-11 | 2010-03-17 | 宇星科技发展(深圳)有限公司 | Garbage leachate treatment technique |
| CN201447391U (en) * | 2009-08-06 | 2010-05-05 | 山东森普瑞石油装备有限公司 | High dryness steam injection boiler water treatment system |
| CN102417253A (en) * | 2011-10-18 | 2012-04-18 | 江苏海洲水务工程有限公司 | Zero-discharge recovery equipment for advanced treatment of heavy metal wastewater |
| KR101318285B1 (en) * | 2013-05-09 | 2013-10-15 | 주식회사삼영이앤티 | Reuse discharge of wastewater |
| CN104787931A (en) * | 2015-04-24 | 2015-07-22 | 山东恒安纸业有限公司 | Deep treatment system and process for paper-making wastewater |
-
2018
- 2018-10-29 CN CN201811271314.XA patent/CN111099764A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201447391U (en) * | 2009-08-06 | 2010-05-05 | 山东森普瑞石油装备有限公司 | High dryness steam injection boiler water treatment system |
| CN101671095A (en) * | 2009-09-11 | 2010-03-17 | 宇星科技发展(深圳)有限公司 | Garbage leachate treatment technique |
| CN102417253A (en) * | 2011-10-18 | 2012-04-18 | 江苏海洲水务工程有限公司 | Zero-discharge recovery equipment for advanced treatment of heavy metal wastewater |
| KR101318285B1 (en) * | 2013-05-09 | 2013-10-15 | 주식회사삼영이앤티 | Reuse discharge of wastewater |
| CN104787931A (en) * | 2015-04-24 | 2015-07-22 | 山东恒安纸业有限公司 | Deep treatment system and process for paper-making wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 解建宝: "《600MW火电机组培训教材 辅助系统分册》", 30 November 2006 * |
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Application publication date: 20200505 |