CN210065383U - Boiler water treatment system - Google Patents

Boiler water treatment system Download PDF

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CN210065383U
CN210065383U CN201920402781.5U CN201920402781U CN210065383U CN 210065383 U CN210065383 U CN 210065383U CN 201920402781 U CN201920402781 U CN 201920402781U CN 210065383 U CN210065383 U CN 210065383U
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bed
water
pipeline
water tank
reserve
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张英君
杨世立
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Huaqiang Chemical Group Co Ltd
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Huaqiang Chemical Group Co Ltd
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Abstract

The utility model discloses a boiler ization water processing system, include raw water tank, high efficiency filter, leading positive bed, decarbonizer, middle water tank, two rooms yin floating bed, the one-level that connect gradually according to raw water treatment direction through the pipeline and mix bed, second grade and demineralized water tank. The utility model adds the front anode bed in front of the anode bed, recovers waste acid generated by the regeneration of the anode bed to the maximum extent, solves the problem of recovering by-product low-concentration hydrochloric acid, designs the cathode bed in the prior art into a double-chamber cathode floating bed, recovers waste alkali generated by the regeneration of the cathode bed to the maximum extent, and solves the problem of recovering by-product low-concentration caustic soda; the design of the additionally arranged front anode bed and the double-chamber cathode floating bed solves the problem that the regenerated wastewater containing acid and alkali is generated in the boiler water treatment process by adopting an ion exchange method in the prior art.

Description

Boiler water treatment system
Technical Field
The utility model belongs to the technical field of boiler softened water treatment process, concretely relates to boiler water treatment system.
Background
The boiler water treatment process is a process for treating boiler water, in which salts such as carbonates, silicates, sulfates and the like of calcium and magnesium ions contained in the boiler water are removed to prevent generation of calcium and magnesium-containing scale due to evaporation of water during operation of the boiler, and the scale adheres to a boiler steel plate or a steel pipe to prevent heat conduction and damages the boiler steel plate, so that the boiler water can be used after being strictly treated. In the prior art, two kinds of ion exchange method and reverse osmosis method are mainly adopted for boiler water treatment process, and the ion exchange method boiler water treatment process in the prior art mainly comprises the following steps:
raw water → raw water tank → raw water pressure pump → multi-media filter → activated carbon filter → water softener → 5 micron precision filter → cation exchange bed → anion exchange bed → mixed bed of anion and cation → microporous filter → water using point.
In the boiler water treatment process, the cation bed and the anion bed are required to be regenerated after running, the wastewater generated by cation bed regeneration is acidic water, the water generated by anion bed regeneration is alkaline water, and in order to meet the discharge standard, the generated acidic wastewater and the alkaline wastewater are required to be subjected to secondary neutralization treatment and then discharged, so that the acid, alkali and electricity consumption is large, and the resource waste is caused.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a boiler ization water treatment system, this water treatment system can reduce the waste water that produces when positive bed and negative bed are regenerated, alleviates the waste water treatment burden.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a boiler water treatment system comprises a raw water tank, a high-efficiency filter, a front anode bed, an anode bed, a decarbonizer, a middle water tank, a double-chamber cathode floating bed, a first-stage mixed bed, a second-stage mixed bed and a demineralized water tank which are sequentially connected through a pipeline according to a raw water treatment direction.
The utility model discloses the positive bed, the cloudy bed regeneration principle: regenerating after the cation bed is failed by using 3 percent hydrochloric acid, wherein the regenerated hydrochloric acid is 1 percent; the preposed cation bed is regenerated after being out of service, 1 percent hydrochloric acid regenerated by the cation bed is completely utilized for regeneration, and the regenerated waste acid can be discharged without subsequent treatment.
The double-chamber floating bed is divided into 2 chambers, the upper chamber is equivalent to an overcast bed, the lower chamber is equivalent to a preposed overcast bed, the overcast bed is regenerated after failure, 3 percent of caustic soda is used for regeneration, and the caustic soda after regeneration is 1 percent. The preposed anion bed is regenerated after being out of service, 1 percent of caustic soda regenerated by the anion bed is completely utilized for regeneration, and the regenerated waste alkali can be discharged without subsequent treatment.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses carry out the reduction of technology with multistage primary filter step among the prior art, adopt a high efficiency filter just can carry out effectual filtration with the raw water, and filter fineness is higher, and filter step simplifies more, and area is still practiced thrift to the saving equipment expense simultaneously.
2. The utility model discloses at the leading cation bed of increase before the cation bed, furthest retrieves the spent acid that the cation bed regeneration produced, solves the problem of by product low concentration hydrochloric acid recovery, designs the anion bed among the prior art for two rooms yin floating bed, and furthest retrieves the alkali waste that the anion bed regeneration produced, solves the problem of by product low concentration caustic soda recovery, has alleviateed the waste water treatment degree of difficulty that cation bed, anion bed regeneration produced.
3. The utility model discloses the two rooms that set up cloudy floating bed is stricter to the quality of water requirement of intaking, and the suspended solid will be less than 2mg/l, and is higher to the intensity requirement of resin, and the cooperation is just can use this two rooms cloudy floating bed to the processing of raw water this water treatment process preorder, has improved the treatment effect of raw water.
4. The utility model discloses mix the bed with anion and cation and set up one-level and mix the bed with the second grade, can further improve the quality of water after the raw water treatment, guarantee the play water quality of water after the processing of raw water.
5. The utility model discloses still be equipped with the decarbonizer between positive bed and negative bed, the concentration of bicarbonate radical ion in the ability reduction aquatic of decarbonizer practices thrift the alkali and consumes.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a flow chart of water production according to the present invention;
FIG. 3 is a flow chart of water production using the standby apparatus shown in FIG. 2;
fig. 4 is a schematic view of the structure of the water distributor of the present invention.
Detailed Description
As shown in fig. 1-4, the utility model relates to a boiler water treatment system, which comprises a raw water tank 1, a high efficiency filter 3, a front anode bed 11, an anode bed 10, a decarbonizer 12, a middle water tank 13, a double-chamber cathode floating bed 18, a first-stage mixed bed 19, a second-stage mixed bed 22 and a demineralized water tank 25 which are connected in sequence through pipelines according to the raw water treatment direction; the raw water tank is used for storing raw water to be treated, and the desalting water tank is used for storing reuse water. The high-efficiency filter is a high-efficiency fiber filter.
The raw water tank 1 is provided with a raw water pump 2 on a pipeline connected with the high-efficiency filter 3, the high-efficiency filter 3 is provided with a first valve 5 on a pipeline connected with the front anode bed 11, the anode bed 10 is provided with a second valve 9 on a pipeline connected with the decarbonizer 12, the middle water tank 13 is provided with a middle water pump 15 on a pipeline connected with the double-chamber anion floating bed 18, a third valve 14 is arranged on an outlet pipeline of the middle water pump 15, and a fourth valve 24 is arranged on a pipeline connected with the secondary mixed bed 22 and the desalted water tank 25.
Because the cation bed, the double-chamber anion floating bed, the first-stage mixed bed and the second-stage mixed bed need to be regenerated after running for a period of time, in order not to influence the normal work of water production, as shown in figure 3, the utility model also comprises a standby treatment device, the standby treatment device comprises a standby double-chamber negative floating bed 16, a standby first-stage mixed bed 20 and a standby second-stage mixed bed 21 which are connected in sequence through pipelines, and a standby front anode bed 6 and a standby anode bed 7 which are connected in sequence through pipelines, wherein the standby preposed anode bed 6 is connected with the water outlet end of the high-efficiency filter 3 through a pipeline with a fifth valve 4, the standby anode bed 7 is connected with the water inlet end of the decarbonizer 12 through a pipeline with a sixth valve 8, the standby double-chamber cathode floating bed 16 is connected with the water outlet end of the middle water pump 15 through a pipeline with a seventh valve 17, and the standby second-stage mixed bed 21 is connected with the water inlet end of the desalted water tank 25 through a pipeline with an eighth valve 23. When the preposed anode bed, the double-chamber cathode floating bed, the first-stage mixed bed and the second-stage mixed bed on the main line are regenerated, a plurality of valves on a plurality of pipelines can be reasonably controlled to enable the water production flow to carry out water production work through the standby treatment device, and the water production interruption and the influence on water use and heat supply of the boiler are avoided.
When the water production is normally operated: raw water sequentially passes through a raw water tank, a raw water pump, a high-fiber filter, a front anode bed, an anode bed, a decarbonizer, a middle water tank, a middle water pump, a double-chamber cathode floating bed, a first-stage mixed bed, a second-stage mixed bed, a demineralized water tank and a demineralized water pump, and finally reaches a water unit.
The utility model discloses carry out the reduction of technology with multistage primary filter step among the prior art, adopt a high efficiency filter just can carry out effectual filtration with the raw water, and filter fineness is higher, and filter step simplifies more, and area is still practiced thrift to the saving equipment expense simultaneously. The utility model discloses the two rooms that set up cloudy floating bed is stricter to the quality of water requirement of intaking, and the suspended solid will be less than 2mg/l, and is higher to the intensity requirement of resin, and the cooperation is just can use this two rooms cloudy floating bed to the processing of raw water this water treatment process preorder, has improved the treatment effect of raw water. The utility model discloses mix the bed with anion and cation and set up one-level and mix the bed with the second grade, can further improve the quality of water after the raw water treatment, guarantee the play water quality of water after the processing of raw water. The utility model discloses still be equipped with the decarbonizer between positive bed and negative bed, the concentration of bicarbonate radical ion in the ability reduction aquatic of decarbonizer practices thrift the alkali and consumes.
During regeneration operation: the main line equipment needs to be regenerated, the water is controlled by a reasonable valve to go to a standby equipment route, and then the equipment needing to be regenerated on the main line is regenerated.
Regeneration of the cation bed: the regeneration liquid is led into the cation bed, the pressure in the cation bed is adjusted, the regeneration liquid discharged from the cation bed is sent into the front-mounted cation bed through the pressure of the cation bed, the serial regeneration of the front-mounted cation bed and the cation bed is realized, the acidity of the regeneration liquid is adsorbed and exchanged by the cation bed and the front-mounted cation bed resin, the acid content of the regeneration wastewater led out from the front-mounted cation bed is almost zero, the wastewater directly reaches the wastewater discharge standard, the neutralization and the post-discharge are carried out without adding alkali liquor, and the subsequent treatment work is saved.
Regeneration of the double-chamber floating bed: according to the operation of the direction of running water production, the regenerated liquid is introduced into a double-chamber floating bed, the double-chamber floating bed is equivalent to a preposed negative bed and a negative bed which are connected in series, the regenerated liquid is adsorbed and exchanged by exchange resin arranged in the double-chamber floating bed, the alkalinity of the regenerated liquid led out from the double-chamber floating bed is close to neutral, the regenerated liquid directly reaches the wastewater discharge standard, acid liquor is not added for neutralization and then discharge, and the subsequent treatment work is saved.
The utility model adds the front anode bed in front of the anode bed, recovers waste acid generated by the regeneration of the anode bed to the maximum extent, solves the problem of recovering by-product low-concentration hydrochloric acid, designs the cathode bed in the prior art into a double-chamber cathode floating bed, recovers waste alkali generated by the regeneration of the cathode bed to the maximum extent, and solves the problem of recovering by-product low-concentration caustic soda; the design of the additionally arranged front anode bed and the double-chamber cathode floating bed solves the problem that the regenerated wastewater containing acid and alkali is generated in the boiler water treatment process by adopting an ion exchange method in the prior art.
The double-chamber anion floating bed comprises a cylinder, wherein a porous partition plate is arranged in the cylinder, the cylinder is divided into an upper part and a lower part by the porous partition plate, the upper part is provided with an upper water distributor communicated with the primary mixed bed, and a first ion exchange resin layer is arranged between the upper water distributor and the porous partition plate; the lower part is provided with a lower water distributor communicated with the middle water pump, and a second ion exchange resin layer is arranged between the lower water distributor and the porous partition plate. The internal structure of the double-chamber floating bed is the prior art, such as the following patent numbers: the cylinder structure and the water distributor mounting position of the double-chamber floating bed disclosed in CN201810514815.X, therefore the utility model discloses do not carry out the schematic diagram to the double-chamber floating bed cylinder and show.
In the operation process of the double-chamber anion floating bed, water enters from the bottom and goes out from the top, the top of the ion exchange resin layer is pushed to the top through water pressure, the water passes through the ion exchange resin layer from the bottom to the top to be treated through ion exchange, the water pressure needs to be strictly controlled in the process, the water pressure directly influences the treatment effect of raw water, in order to enable the raw water entering the double-chamber anion floating bed to stably lift up the ion exchange resin layer, a water distributor is arranged in the double-chamber anion floating bed and is used for dispersing the inlet water, the water distributor in the prior art has a simple structure, water outlet holes are arranged on water outlet pipes side by side, the water is sprayed out according to the same direction when the water is discharged, the water entering the double-chamber anion floating bed is easy to generate turbulent motion, the water pushing and pushing of the raw water to push the ion exchange resin layer is not stable enough, the treatment effect of the water is influenced, in order to solve the problem, the upper water distributor and the, one end of each of the water outlet pipes 183 is arranged along the circumferential direction of the main pipe 181 and communicated with the main pipe 181, and each water outlet pipe 183 is provided with a plurality of water outlet holes circumferentially arranged along the circumferential direction, and each water outlet hole comprises a plurality of water outlet holes 182 axially and spirally arranged along the water outlet pipes 183. The reasonable arrangement mode of the water outlet holes on the water outlet pipe can effectively reduce the influence of water inflow on the water layer of the top ion exchange resin layer, and improve the treatment effect of the ion exchange resin layer on the water inflow.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (6)

1. A boiler water treatment system, characterized in that: comprises a raw water tank, a high-efficiency filter, a preposed anode bed, an anode bed, a decarbonizer, a middle water tank, a double-chamber cathode floating bed, a first-stage mixed bed, a second-stage mixed bed and a desalting water tank which are sequentially connected through a pipeline according to the raw water treatment direction.
2. A boiler water treatment system according to claim 1, characterized in that: the pipeline that raw water tank and high efficiency filter are connected is equipped with raw water pump, is equipped with first valve on the pipeline that high efficiency filter and leading positive bed are connected, is equipped with the second valve on the pipeline that positive bed and decarbonizer are connected, be equipped with middle water pump on the pipeline that middle water tank and two rooms cloudy floating bed are connected, be equipped with the third valve on the middle water pump outlet conduit, be equipped with the fourth valve on the pipeline that second grade mixes the bed and is connected with the demineralized water tank.
3. A boiler water treatment system according to claim 2, characterized in that: still include standby treatment device, standby treatment device includes that the reserve two room cloudy floating bed, reserve one-level that connect gradually through the pipeline mix the bed, reserve second grade mixes the bed and passes through the reserve leading positive bed, reserve positive bed that the pipeline connected gradually, wherein reserve leading positive bed and high efficiency filter play water end through the pipe connection of taking the fifth valve, reserve positive bed and decarbonizer intake end are through the pipe connection of taking the sixth valve, reserve two room cloudy floating bed is connected through the pipeline of taking the seventh valve and middle water pump play water end, reserve second grade mixes the bed and passes through the pipe connection of taking the eighth valve with demineralized water tank intake end.
4. A boiler water treatment system according to claim 3, characterized in that: the high-efficiency filter is a high-efficiency fiber filter.
5. A boiler water treatment system according to claim 1, characterized in that: the double-chamber anion floating bed comprises a cylinder, wherein a porous partition plate is arranged in the cylinder, the cylinder is divided into an upper part and a lower part by the porous partition plate, the upper part is provided with an upper water distributor communicated with the primary mixed bed, and a first ion exchange resin layer is arranged between the upper water distributor and the porous partition plate; the lower part is provided with a lower water distributor communicated with the middle water pump, and a second ion exchange resin layer is arranged between the lower water distributor and the porous partition plate.
6. A boiler water treatment system according to claim 5, characterized in that: go up the water-locator and all include the person in charge and many outlet pipes down the water-locator, the one end of many outlet pipes all is towards being responsible for the pipe and sets up and communicate with each other with being responsible for along being responsible for circumference and be connected, wherein all is equipped with on every outlet pipe along its circumference and encloses the multiunit apopore of establishing, and every group apopore all includes a plurality of apopores that set up along outlet pipe axial spiral.
CN201920402781.5U 2019-03-27 2019-03-27 Boiler water treatment system Active CN210065383U (en)

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CN201920402781.5U CN210065383U (en) 2019-03-27 2019-03-27 Boiler water treatment system

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Application Number Priority Date Filing Date Title
CN201920402781.5U CN210065383U (en) 2019-03-27 2019-03-27 Boiler water treatment system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112707562A (en) * 2020-12-09 2021-04-27 淄博环能海臣环保技术服务有限公司 Comprehensive utilization device for preparing pure condensate water and treating water resources in thermal power plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112707562A (en) * 2020-12-09 2021-04-27 淄博环能海臣环保技术服务有限公司 Comprehensive utilization device for preparing pure condensate water and treating water resources in thermal power plant

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