CN108726735A - A kind of water treating softener system residual hardness optical monitoring regulating system and method - Google Patents
A kind of water treating softener system residual hardness optical monitoring regulating system and method Download PDFInfo
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- CN108726735A CN108726735A CN201810893194.0A CN201810893194A CN108726735A CN 108726735 A CN108726735 A CN 108726735A CN 201810893194 A CN201810893194 A CN 201810893194A CN 108726735 A CN108726735 A CN 108726735A
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- detection
- chemicals dosing
- dosing plant
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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
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
- C02F2209/055—Hardness
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses a kind of water treating softener system residual hardness optical monitoring regulating system and methods, including former pond, sodium hydroxide chemicals dosing plant, demagging reaction settler, deliming reaction settler, sodium carbonate chemicals dosing plant, soften pond, #1 precise filtering devices, #2 precise filtering devices, calcium detection agent chemicals dosing plant, residual calcium detects reactor, #1 light forwarding systems, #1 scattered light detection systems, magnesium detection agent chemicals dosing plant, remaining magnesium detects reactor, #2 light forwarding systems and #2 scattered light detection systems, the system and method can be realized to softening the water hardness and monitored on-line to control the dosage of medicine system.
Description
Technical field
The invention belongs to water-treatment technology field, it is related to a kind of residual harness monitoring regulating system and method, and in particular to
A kind of water treating softener system residual hardness optical monitoring regulating system and method.
Background technology
With the implementation of ten, water and Pollutant Discharge Permit System, the more and more enterprises of the industries such as coal chemical industry, thermoelectricity need reality
Existing wastewater zero discharge in wastewater zero discharge overall plan, is typically chosen membrane process and carries out concentration decrement to waste water, needed before film concentration
Hardness ions in waste water are removed, the dense water side deposition of film is prevented.Currently, chemical precipitation method is generally used to hardness removal, due to water
Matter fluctuates, and softening medicament dosage can not adjust immediately, causes membranous system water inlet that cannot meet design requirement, and membranous system generates knot
Dirty dirty stifled, flux depression, system water yield reduces, and cannot be satisfied service requirement, and film chemical cleaning is frequent, shortens membrane lifetime.
Therefore, need be by water hardness on-line monitoring to softening, the feedback of demand hardness on-line monitoring and softening medicament medicine system
Control ensures bating effect.
Invention content
It is an object of the invention to overcome the above-mentioned prior art, it is hard to provide a kind of water treating softener system residual
Spend optical monitoring regulating system and method, which can realize to softening the water hardness and monitored on-line to control
The dosage of medicine system.
In order to achieve the above objectives, water treating softener system residual hardness optical monitoring regulating system of the present invention includes
Former pond, sodium hydroxide chemicals dosing plant, demagging reaction settler, deliming reaction settler, sodium carbonate chemicals dosing plant, softened water
Pond, #1 precise filtering devices, #2 precise filtering devices, calcium detection agent chemicals dosing plant, residual calcium detection reactor, #1 incidence spectrums
System, #1 scattered light detection systems, magnesium detection agent chemicals dosing plant, remaining magnesium detection reactor, #2 light forwarding systems and #2 scatter light
Detecting system；
The outlet of former pond and the outlet of sodium hydroxide chemicals dosing plant are connected with the entrance of demagging reaction settler, demagging
The outlet of reaction settler and the outlet of sodium carbonate chemicals dosing plant are connected with the entrance of deliming reaction settler, and deliming reaction is heavy
It is divided into two-way behind the softened pond in outlet of shallow lake device, wherein be connected all the way with the entrance of #1 precise filtering devices, another way and #
The entrance of 2 precise filtering devices is connected, the outlet of #1 precise filtering devices and the outlet of calcium detection agent chemicals dosing plant with it is remaining
The entrance of calcium detection reactor is connected, and #1 light forwarding system face residual calciums detect the light entrance of reactor, and #1 scatters light
Detecting system face residual calcium detects the light outlet of reactor, and output end and the sodium carbonate dosing of #1 scattered light detection systems fill
The control terminal set is connected, and the outlet of #2 precise filtering devices and the outlet of magnesium detection agent chemicals dosing plant are reacted with remaining magnesium detection
The entrance of device is connected, and #2 light forwarding system face remnants magnesium detects the light entrance of reactor, and #2 scattered light detection systems are just
The light outlet of reactor, the control of the output end and sodium hydroxide chemicals dosing plant of #2 scattered light detection systems are detected to remaining magnesium
End is connected.
The inlet of former pond is provided with inlet valve；
It is provided with raw water pump between former pond and demagging reaction settler.
It is provided with calcium monitoring adjusting unit intake pump between softening pond and #1 precise filtering devices and calcium monitoring adjusting is single
First control valve.
It is provided with magnesium monitoring adjusting unit intake pump between softening pond and #2 precise filtering devices and magnesium monitoring adjusting is single
First control valve.
The outlet in softening pond is also communicated with drainage pipeline, wherein System drainage pump and system are provided on drainage pipeline
Drain valve.
Water treating softener system residual hardness optical monitoring adjusting method of the present invention includes the following steps：
The water of former pond output and the sodium hydroxide of sodium hydroxide chemicals dosing plant output enter in demagging reaction settler,
And reacted in demagging reaction settler, wherein the precipitation discharge of demagging reaction settler output, demagging reaction settler
The sodium carbonate of supernatant and sodium carbonate the chemicals dosing plant output of output enters in deliming reaction settler, and heavy in deliming reaction
It is reacted in the device of shallow lake, wherein the precipitation of deliming reaction settler output is recycled as desulfurizing agent, dephosphorization agent, deliming
The supernatant of reaction settler output enters in softening pond, and the water of softening pond output enters #1 precise filtering devices and #2
It is filtered in precise filtering device；
The water of #1 precise filtering devices output and the medicament of calcium detection agent chemicals dosing plant output enter residual calcium detection reaction
It reacts to each other in device, the light that #1 light forwarding systems are sent out, which enters in residual calcium detection reactor, to be scattered, #1 scatterings
The intensity of optical detection system detection scattering light, when the intensity for the scattering light that #1 scattered light detection systems detect is more than or equal in advance
If value I0When, then control the output quantity that sodium carbonate chemicals dosing plant increases sodium carbonate；
The medicament of water and magnesium detection agent the chemicals dosing plant output of #2 precise filtering devices enter remaining magnesium detect reactor into
Row reacts to each other, and the light that #2 light forwarding systems are sent out enters remaining magnesium detection reactor and is scattered, and #2 scatters light detection system
The intensity of system detection scattering light, when the intensity for the scattering light that #2 scattered light detection systems detect is more than or equal to preset value I1
When, then control the output quantity that sodium hydroxide chemicals dosing plant increases sodium hydroxide.
The invention has the advantages that：
Water treating softener system residual hardness optical monitoring regulating system and method for the present invention when specific operation,
Water after dosing precipitation process has respectively entered in residual calcium detection reactor and remaining magnesium detection reactor, passes through #1 incidences
Photosystem and #1 scattered light detection systems detection residual calcium detect the amount of residual calcium in water in reactor, when the amount of residual calcium is more than
When preset value, then the output quantity that sodium carbonate chemicals dosing plant increases sodium carbonate is controlled；Light inspection is scattered by #2 light forwarding systems and #2
Examining system is matched to detect the amount of remaining magnesium in water in remaining magnesium detection reactor, when the amount of remaining magnesium is more than or equal to preset value
When, then the output quantity that sodium hydroxide chemicals dosing plant increases sodium hydroxide is controlled, to ensure that the hardness of the water after dosing precipitates meets
Design requirement, easy to operate, high degree of automation can stablize the normal operation for ensureing follow-up system.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 be former pond, 2 be demagging reaction settler, 3 be sodium hydroxide chemicals dosing plant, 4 be deliming reaction precipitation
Device, 5 be sodium carbonate chemicals dosing plant, 6 be softening pond, 7 be #1 precise filtering devices, 8 be calcium detection agent chemicals dosing plant, 9 be residual
Remaining calcium detection reactor, 10 be #1 light forwarding systems, 11 be #1 scattered light detection systems, 12 be #2 precise filtering devices, 13 be
Magnesium detection agent chemicals dosing plant, 14 be remaining magnesium detection reactor, 15 be #2 light forwarding systems, 16 be #2 scattered light detection systems,
M1 is raw water pump, M2 be calcium monitoring adjust unit intake pump, M3 be magnesium monitoring adjust unit intake pump, M4 be System drainage pump,
K1 is inlet valve, K2 is that calcium monitoring adjusts unit control valve, K3 is that magnesium monitoring adjusts unit control valve, K4 is System drainage valve.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, water treating softener system residual hardness optical monitoring regulating system of the present invention includes former pond
1, sodium hydroxide chemicals dosing plant 3, demagging reaction settler 2, deliming reaction settler 4, sodium carbonate chemicals dosing plant 5, softening pond
6, #1 precise filtering devices 7, #2 precise filtering devices 12, calcium detection agent chemicals dosing plant 8, residual calcium detection reactor 9, #1 are incident
Photosystem 10, #1 scattered light detection systems 11, magnesium detection agent chemicals dosing plant 13, remaining magnesium detection reactor 14, #2 incidence spectrums
15 and #2 of system scattered light detection systems 16；Precipitation is reacted in the outlet of former pond 1 and the outlet of sodium hydroxide chemicals dosing plant 3 with demagging
The entrance of device 2 is connected, the outlet of demagging reaction settler 2 and the outlet of sodium carbonate chemicals dosing plant 5 and deliming reaction settler 4
Entrance be connected, be divided into two-way behind the softened pond in the outlet of deliming reaction settler 46, wherein all the way with #1 secondary filters
The entrance of device 7 is connected, and another way is connected with the entrance of #2 precise filtering devices 12, the outlet of #1 precise filtering devices 7
And the outlet of calcium detection agent chemicals dosing plant 8 is connected with the entrance of residual calcium detection reactor 9,10 face of #1 light forwarding systems is residual
The light entrance of remaining calcium detection reactor 9,11 face residual calcium of #1 scattered light detection systems detect the light outlet of reactor 9, #
The output end of 1 scattered light detection system 11 is connected with the control terminal of sodium carbonate chemicals dosing plant 5, and #2 precise filtering devices 12 go out
The outlet of mouth and magnesium detection agent chemicals dosing plant 13 is connected with the entrance that remaining magnesium detects reactor 14, and #2 light forwarding systems 15 are just
The light entrance of reactor 14 is detected to remaining magnesium, 16 face remnants magnesium of #2 scattered light detection systems detects the light of reactor 14
Outlet, the output end of #2 scattered light detection systems 16 are connected with the control terminal of sodium hydroxide chemicals dosing plant 3.
The inlet of former pond 1 is provided with inlet valve K1；It is provided with raw water between former pond 1 and demagging reaction settler 2
Pump M1；It is provided with calcium monitoring adjusting unit intake pump M2 between softening pond 6 and #1 precise filtering devices 7 and calcium monitoring adjusting is single
First control valve K2；It is provided with magnesium monitoring between softening pond 6 and #2 precise filtering devices 12 and adjusts unit intake pump M3 and magnesium prison
It surveys and adjusts unit control valve K3；The outlet in softening pond 6 is also communicated with drainage pipeline, wherein system is provided on drainage pipeline
Draining pump M4 and System drainage valve K4.
Water treating softener system residual hardness optical monitoring adjusting method of the present invention includes the following steps：
The sodium hydroxide that the water and sodium hydroxide chemicals dosing plant 3 that former pond 1 exports export enters demagging reaction settler 2
In, and reacted in demagging reaction settler 2, wherein the precipitation discharge that demagging reaction settler 2 exports, demagging reaction
The sodium carbonate that the supernatant and sodium carbonate chemicals dosing plant 5 that settling vessel 2 exports export enters in deliming reaction settler 4, and
It is reacted in deliming reaction settler 4, wherein the precipitation that deliming reaction settler 4 exports is carried out as desulfurizing agent, dephosphorization agent
It recycles, the supernatant that deliming reaction settler 4 exports enters in softening pond 6, and the water that softening pond 6 exports enters #1 essences
It is filtered in close filter device 7 and #2 precise filtering devices 12；
It is anti-that the medicament that the water and calcium detection agent chemicals dosing plant 8 that #1 precise filtering devices 7 export export enters residual calcium detection
It answers and reacts to each other in device 9, the light that #1 light forwarding systems 10 are sent out, which enters in residual calcium detection reactor 9, to be scattered, #
The intensity of 1 scattered light detection system 11 detection scattering light, when #1 scattered light detection systems 11 detect the intensity of obtained scattering light
More than or equal to preset value I0When, then control the output quantity that sodium carbonate chemicals dosing plant 5 increases sodium carbonate；
The medicament of water and magnesium detection agent chemicals dosing plant 13 output of #2 precise filtering devices 12 enters remaining magnesium detection reaction
Device 14 reacts to each other, and the light that #2 light forwarding systems 15 are sent out enters remaining magnesium detection reactor 14 and is scattered, and #2 dissipates
The intensity for penetrating the detection scattering light of optical detection system 16, when the intensity that #2 scattered light detection systems 16 detect obtained scattering light is more than
Equal to preset value I1When, then control the output quantity that sodium hydroxide chemicals dosing plant 3 increases sodium hydroxide.
The draining of residual harness qualification is sent into through System drainage pump M4 in follow-up system.
The above is only the citing of the implementation steps of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improve and become
Type also should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of water treating softener system residual hardness optical monitoring regulating system, which is characterized in that including former pond (1), hydrogen
Sodium oxide molybdena chemicals dosing plant (3), demagging reaction settler (2), deliming reaction settler (4), sodium carbonate chemicals dosing plant (5), softening
Pond (6), #1 precise filtering devices (7), #2 precise filtering devices (12), calcium detection agent chemicals dosing plant (8), residual calcium detection are anti-
Answer device (9), #1 light forwarding systems (10), #1 scattered light detection systems (11), magnesium detection agent chemicals dosing plant (13), remaining magnesium detection
Reactor (14), #2 light forwarding systems (15) and #2 scattered light detection systems (16)；
The outlet of former pond (1) and the outlet of sodium hydroxide chemicals dosing plant (3) are connected with the entrance of demagging reaction settler (2)
It is logical, the entrance of the outlet of demagging reaction settler (2) and the outlet and deliming reaction settler (4) of sodium carbonate chemicals dosing plant (5)
It is connected, is divided into two-way behind the softened pond in outlet (6) of deliming reaction settler (4), wherein is filled all the way with #1 secondary filters
The entrance for setting (7) is connected, and another way is connected with the entrance of #2 precise filtering devices (12), #1 precise filtering devices (7)
Outlet and the outlet of calcium detection agent chemicals dosing plant (8) are connected with the entrance of residual calcium detection reactor (9), #1 light forwarding systems
(10) light entrance of face residual calcium detection reactor (9), the detection reaction of #1 scattered light detection systems (11) face residual calcium
The output end of the light outlet of device (9), #1 scattered light detection systems (11) is connected with the control terminal of sodium carbonate chemicals dosing plant (5)
It connects, the outlet of #2 precise filtering devices (12) and the outlet of magnesium detection agent chemicals dosing plant (13) detect reactor (14) with remaining magnesium
Entrance be connected, #2 light forwarding systems (15) face remnants magnesium detect reactor (14) light entrance, #2 scatter light detection
System (16) face remnants magnesium detects the light outlet of reactor (14), the output end and hydrogen-oxygen of #2 scattered light detection systems (16)
The control terminal for changing sodium chemicals dosing plant (3) is connected.
2. water treating softener system residual hardness optical monitoring regulating system according to claim 1, which is characterized in that former
The inlet in pond (1) is provided with inlet valve (K1)；
Raw water pump (M1) is provided between former pond (1) and demagging reaction settler (2).
3. water treating softener system residual hardness optical monitoring regulating system according to claim 1, which is characterized in that soft
It is provided with calcium monitoring between change pond (6) and #1 precise filtering devices (7) and adjusts unit intake pump (M2) and calcium monitoring adjusting list
First control valve (K2).
4. water treating softener system residual hardness optical monitoring regulating system according to claim 1, which is characterized in that soft
It is provided with magnesium monitoring between change pond (6) and #2 precise filtering devices (12) and adjusts unit intake pump (M3) and magnesium monitoring adjusting list
First control valve (K3).
5. water treating softener system residual hardness optical monitoring regulating system according to claim 1, which is characterized in that soft
The outlet for changing pond (6) is also communicated with drainage pipeline, wherein System drainage pump (M4) and System drainage are provided on drainage pipeline
Valve (K4).
6. a kind of water treating softener system residual hardness optical monitoring adjusting method, which is characterized in that based on described in claim 1
Water treating softener system residual hardness optical monitoring regulating system, include the following steps：
The water of former pond (1) output and the sodium hydroxide of sodium hydroxide chemicals dosing plant (3) output enter demagging reaction settler
(2) it in, and is reacted in demagging reaction settler (2), wherein the precipitation discharge of demagging reaction settler (2) output removes
The supernatant of magnesium reaction settler (2) output and the sodium carbonate of sodium carbonate chemicals dosing plant (5) output enter deliming reaction precipitation
It in device (4), and is reacted in deliming reaction settler (4), wherein the precipitation conduct of deliming reaction settler (4) output
Desulfurizing agent, dephosphorization agent are recycled, and the supernatant of deliming reaction settler (4) output enters in softening pond (6), softened water
The water of pond (6) output, which enters in #1 precise filtering devices (7) and #2 precise filtering devices (12), to be filtered；
It is anti-that the water of #1 precise filtering devices (7) output and the medicament of calcium detection agent chemicals dosing plant (8) output enter residual calcium detection
It answers and reacts to each other in device (9), the light that #1 light forwarding systems (10) are sent out, which enters in residual calcium detection reactor (9), to carry out
Scattering, the intensity of #1 scattered light detection systems (11) detection scattering light, when what #1 scattered light detection systems (11) detection obtained dissipates
The intensity for penetrating light is more than or equal to preset value I0When, then control the output quantity that sodium carbonate chemicals dosing plant (5) increases sodium carbonate；
The medicament of water and magnesium detection agent chemicals dosing plant (13) output of #2 precise filtering devices (12) enters remaining magnesium detection reaction
Device (14) reacts to each other, and the light that #2 light forwarding systems (15) are sent out enters remaining magnesium detection reactor (14) and dissipated
It penetrates, the intensity of #2 scattered light detection systems (16) detection scattering light, when #2 scattered light detection systems (16) detect obtained scattering
The intensity of light is more than or equal to preset value I1When, then control the output quantity that sodium hydroxide chemicals dosing plant (3) increases sodium hydroxide.
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| CN201810893194.0A CN108726735A (en) | 2018-08-07 | 2018-08-07 | A kind of water treating softener system residual hardness optical monitoring regulating system and method |
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| CN201810893194.0A CN108726735A (en) | 2018-08-07 | 2018-08-07 | A kind of water treating softener system residual hardness optical monitoring regulating system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114835291A (en) * | 2022-04-25 | 2022-08-02 | 西安西热水务环保有限公司 | Mine water resource quality-divided softening process control system |
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| CN208684631U (en) * | 2018-08-07 | 2019-04-02 | 西安西热水务环保有限公司 | A kind of water treating softener system residual hardness optical monitoring regulating system |
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| WO2001004062A1 (en) * | 1999-07-09 | 2001-01-18 | Peter Koslowsky | Method and device for treating water, especially drinking water, and for maintaining the purity thereof |
| CN103979709A (en) * | 2014-05-14 | 2014-08-13 | 西安西热水务环保有限公司 | Combined softening processing system and method for circulating water and discharging water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114835291A (en) * | 2022-04-25 | 2022-08-02 | 西安西热水务环保有限公司 | Mine water resource quality-divided softening process control system |
| CN114835291B (en) * | 2022-04-25 | 2023-11-24 | 西安西热水务环保有限公司 | Mine water recycling quality-dividing softening process control system |
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