CN104460586A - Constant-water-pressure wastewater treatment method - Google Patents
Constant-water-pressure wastewater treatment method Download PDFInfo
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- CN104460586A CN104460586A CN201410559494.7A CN201410559494A CN104460586A CN 104460586 A CN104460586 A CN 104460586A CN 201410559494 A CN201410559494 A CN 201410559494A CN 104460586 A CN104460586 A CN 104460586A
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- water
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- hydraulic pressure
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- wastewater treatment
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by quality surveillance of production
Abstract
The invention discloses a constant-water-pressure wastewater treatment method. The method comprises the steps of water pressure monitoring and tendency chart drawing of original water to be treated, water pressure monitoring and tendency chart drawing of wastewater treatment intermediate water, water pressure monitoring and tendency chart drawing of water at a wastewater outlet, and water pressure value comparing and tendency chart drawing, namely, the actual water pressure values of the original water to be treated, the wastewater treatment intermediate water and the water at the wastewater outlet are compared with corresponding set water pressure values, and corresponding tendency charts are drawn. By adopting the method, the water pressures of the original water to be treated, the wastewater treatment intermediate water and the water at the wastewater outlet can be kept constant for a long time, and therefore wastewater treatment quality is constant, and meanwhile energy consumption can be lowered. In addition, a frequency converter with the PID regulating function can shorten the time of switching different frequencies, and therefore wastewater treatment efficiency can be improved.
Description
Technical field
The application relates to a kind of method for treating water, particularly a kind of sewage water treatment method of water pressure invariableness.
Background technology
In the water pollution that human production activity causes, the water pollution that industry causes is the most serious.As industrial waste water, it is many containing pollutant, and complicated component, not only not easily purifies in water, and process is also more difficult, and industrial waste water is the most important reason that industrial pollution causes water pollution.It accounts for the major part of the pollutant that industry is discharged.Pollutant contained by industrial waste water varies because factory's kind is different, even same class factory, production run is different, and the quality and quantity of pollutant contained by it is also different.Industry is except the waste water of discharging directly injects water body and causes pollution, and solid waste and waste gas also can polluted-waters.
In recent years, wastewater treatment in China industry is advanced by leaps and bounds, and overall development is in the fast-growing period, is mainly manifested in the aspects such as sewage treatment capacity is expanded rapidly, wastewater treatment rate steadily improves, sewage load increases fast.
Along with the going deep into of industrialization and urbanization of China, the investment of Chinese sewage treatment area will continue to keep increasing, but invest the trend that speedup then shows downslide in a short time.Excellent control can save the operating cost of wastewater treatment, is also to reduce and tackle unusual service condition to occur, ensure the key that sewage disposal process normally runs simultaneously.In addition, by improving the automatization level of sewage disposal process, can also effectively reduce operational management and operating personnel, reducing operating cost.Due to sewage disposal process more complicated, often cannot control accurately between existing sewage disposal device, meanwhile, energy consumption cannot reduce.
At present, cause water treatment energy consumption high and energy consumption is wasted a serious important indicator and is: the hydraulic pressure in water treatment facilities can not be constant, cause that water treatment capacity is superfluous or water treatment capacity is not enough, can not proportioning be balanced between the two.When productive life water treatment supplies water, if tap water supply insufficient pressure or cut off the water supply in short-term for some reason, quality of life may be affected, living safety can be affected time serious, during as breaking out of fire, if pressure of supply water is not enough or anhydrous supply, can not puts out a fire rapidly, heavy economic losses and casualties may be caused.
In wastewater treatment, the influential effect that water treatment is so large can not be brought, but still a large amount of energy losses can be caused.In wastewater treatment, when sewage accumulation is many, treatment capacity large, pressure of supply water is high, and pressure in whole sewage treatment pipeline will be made to increase, and the time of large amount of sewage in sewage-treatment plant is short, and the Disposal quality of sewage declines to a great extent, and causes wastewater disposition not up to standard.If treatment sewage burden is few, pressure of supply water is low, and the pressure in whole sewage treatment pipeline reduces, the actual treatment ability of sewage disposal device is superfluous, the equipment such as water pump, various motors still by normal condition running, like this, will cause the loss of a large amount of energy consumption.
No. 200910085728.8 Chinese invention patent disclosed in 10 days March in 2010, patent of invention name is called " a kind of water treatment facilities, water treatment system and method for treating water thereof ".It comprises pipeline, with the filtration unit of pipeline communication and chemicals dosing plant, this chemicals dosing plant is communicated with filtration unit, for adding medicine in the former water to the described filtration unit of inflow.The Main Function of filtration unit is the large molecule solutes such as the various particulates removed in former water, colloidal particle, organism and microorganism, thus guarantees the degree of purity of the water purification obtained, and preferably reaches the object that applicable people drinks.
Above-mentioned water treatment facilities are applicable to various former water, so-called former water typically refers to the slightly poor water of water quality, such as former water can from various former water source, and this former water source can be various water source (as well, mountain spring, freshet or lake etc.), for providing former water to filtration unit.According to the difference of former water source relative to the relative position of filtration unit, selectively water pump can be set.Such as, if the position at former water source is relatively high, then can utilizes difference in height and make the former water automatic stream filtration unit in former water source; If the position at former water source is relatively low, then by water pump, the raw water pump in former water source can be pressed onto filtration unit.
Above-mentioned patented claim, increases hydraulic pressure in water treatment facilities by water pump, no matter utilizes difference in height or water pump, and the hydraulic pressure in water treatment facilities all cannot be monitored, even if hydraulic pressure can be monitored, hydraulic pressure can not be made to keep constant.
No. 201210175835.1 Chinese invention patent disclosed in 19 days September in 2012, denomination of invention is " water treatment facilities ", and it comprises base, water tank, filter membrane device, wiper, water production pipeline assembly, backwash conduit assembly and control box.Water production pipeline assembly comprises the rotary shaft water producing pipe be arranged in water tank and the conveyance conduit assembly being positioned at water tank outside; This rotary shaft water producing pipe is connected with drive motor; This water production pipeline assembly is provided with solenoid valve, tensimeter, pressure switch and flowmeter, and this backwash conduit assembly is connected on water production pipeline assembly; Taking out to draw by product water water pump forward enters in rotary shaft water producing pipe by the sewage in water tank through filter membrane device filtration formation product water, is oppositely taken out and draws, carry out reverse cleaning to filter membrane device during backwash by backwash water pump.
Above-mentioned water treatment facilities structure is simple, by the cooperation of each components and parts, achieves high-level efficiency and produces water, guarantee produce quality and produce water efficiency, its whole service process system Automatic Control, and it is safe and reliable to operation; Meanwhile, its each conduit assembly connection and reasonable arrangement, compact, save and take up room.But, above-mentioned water treatment facilities also can only detect product water pressure, by to the monitoring of product water pressure, increase flow of inlet water, but product water pressure is low, whether to be caused by the fault of equipment own or pressure of supply water is low to be caused, cannot judge, if cause because of equipment faults itself, and directly increase flow of inlet water, water treatment quality dissatisfaction will be made, lose more than gain.Meanwhile, pressure of supply water also cannot be monitored.
application content
The technical matters that the application will solve is for above-mentioned the deficiencies in the prior art, and a kind of sewage water treatment method of water pressure invariableness is provided, this sewage water treatment method can make the hydraulic pressure at water and sewage outlet place in the middle of pending former water, wastewater treatment within long period of time, all steady state can be kept, thus water treatment constant mass, meanwhile, energy consumption can be saved.
For solving the problems of the technologies described above, the technical scheme that the application adopts is:
A sewage water treatment method for water pressure invariableness, comprises the following steps:
The first step, pending former water water pressure monitoring and trend map are drawn: by arrange at the water delivering orifice of pending former water be connected with PLC at line pressure sensor, at any time pressure detection is carried out to pending former water and draws pressure trend figure;
Second step, the hydraulic pressure of water detects and trend map is drawn in the middle of wastewater treatment: by arrange in the centre position of wastewater treatment that several are connected with PLC at line pressure sensor, wastewater treatment centre water is carried out to pressure detection at any time and draws pressure trend figure;
3rd step, the hydraulic pressure at sewage outlet place detects and trend map is drawn: by arrange at sewage outlet place be connected with PLC at line pressure sensor, the pressure at sewage outlet place is detected at any time and draws pressure trend figure;
4th step, hydraulic pressure value compares and trend map is drawn: by pending former water, the respective actual hydraulic pressure value in water and sewage outlet place and respective setting hydraulic pressure value compare and draw trend map in the middle of wastewater treatment; Several states that hydraulic pressure value compares are:
---when pending former water hydraulic pressure exceeds the highest setting water supply pressure, former water water pump cuts out, and utilizes pressure head automatically to enter in sewage disposal device by pending former hydraulic pressure;
---when pending former water hydraulic pressure sets between hydraulic pressure or when pending former water hydraulic pressure sets between hydraulic pressure at minimum setting hydraulic pressure and low level at the highest setting hydraulic pressure and a high position, pending raw water pump enters in sewage disposal device by the variable frequency pump utilizing speed to regulate;
---when pending former water hydraulic pressure is positioned at normal setting hydraulic pressure, directly utilizes conventional water pump or variable frequency pump is adjusted to conventional sense, pending raw water pump is entered in sewage disposal device;
---when pending former water hydraulic pressure is lower than minimum setting hydraulic pressure, after utilizing turbocharging water pump to increase pressure of supply water, pending raw water pump is entered in sewage disposal device;
---when pending former water, sewage outlet place hydraulic pressure and setting hydraulic pressure ratio are normal, and in the middle of wastewater treatment, the hydraulic pressure of water is abnormal, now, then needs to overhaul sewage disposal device.
Described variable frequency pump is provided with the frequency converter with PID regulatory function, and this frequency converter can shorten the switching time between different frequency.
The model of described variable frequency pump is CX-B series constant pressure water supply automaton.
The internal face of the sewer line of described sewage disposal device is provided with the macromolecular material that flow-passing surface can be made to have smooth surface.
Described macromolecular material is teflon.
After adopting said method, there is following beneficial effect:
1. by monitoring and trend analysis the hydraulic pressure at water and sewage outlet place in the middle of pending former water, wastewater treatment, thus can make the hydraulic pressure at water and sewage outlet place in the middle of pending former water, wastewater treatment within long period of time, all steady state can be kept, thus water treatment constant mass, there will not be treatment sewage to have little time process or the processing time short, just directly discharge and the pollution problem that causes.
2. the use of pressure head and the use of variable frequency pump, can save a large amount of energy consumption.
3. there is the use of the frequency converter of PID regulatory function, the switching time between different frequency can be shortened, thus the efficiency of wastewater treatment can be improved.
4. the use of polytetrafluoroethylmaterial material, can make the flow-passing surface of the internal face of sewer line smooth, thus avoid the pressure anomaly of inner pipeline plug plug and equipment self, thus makes wastewater treatment water pressure energy keep constant.
Embodiment
For making the object of the embodiment of the present invention and technical scheme clearly, below in conjunction with the embodiment of the present invention, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Just concrete better embodiment is described in further detail the application below.
A sewage water treatment method for water pressure invariableness, comprises the following steps:
The first step, pending former water water pressure monitoring and trend map are drawn: by arrange at the water delivering orifice of pending former water or the water inlet of sewage disposal device be connected with PLC at line pressure sensor, at any time pressure detection is carried out to pending former water and draws pressure trend figure.In addition, also can assist in pending raw water vessel liquid level sensor is set, to monitor the liquid level in pending raw water vessel.The application, said water pressure invariableness, do not say that the hydraulic pressure at water and sewage outlet place in the middle of the pending former water hydraulic pressure of needs, wastewater treatment must be equal, but say, in the middle of pending former water hydraulic pressure, wastewater treatment, the hydraulic pressure at water and sewage outlet place is within operation longer a period of time, and respective force value can keep relative constancy.By monitoring and trend analysis the hydraulic pressure of pending former water, thus can make the hydraulic pressure of pending former water within long period of time, can steady state be kept.
Second step, the hydraulic pressure of water detects and trend map is drawn in the middle of wastewater treatment: by arrange in the centre position of wastewater treatment that several are connected with PLC at line pressure sensor, wastewater treatment centre water is carried out to pressure detection at any time and draws pressure trend figure.By monitoring and trend analysis the hydraulic pressure of water in the middle of wastewater treatment, thus can make the hydraulic pressure of water in the middle of wastewater treatment within long period of time, can steady state be kept.
3rd step, the hydraulic pressure at sewage outlet place detects and trend map is drawn: by arrange at sewage outlet place be connected with PLC at line pressure sensor, the pressure at sewage outlet place is detected at any time and draws pressure trend figure.By monitoring and trend analysis the hydraulic pressure at sewage outlet place, thus can make the hydraulic pressure at sewage outlet place within long period of time, can steady state be kept.
4th step, hydraulic pressure value compares and trend map is drawn: by pending former water, the respective actual hydraulic pressure value in water and sewage outlet place and respective setting hydraulic pressure value compare and draw trend map in the middle of wastewater treatment.
Hydraulic pressure value relatively after, preferably there is following several state:
1., when pending former water hydraulic pressure exceeds the highest setting water supply pressure, former water water pump cuts out, and utilizes pressure head automatically to be entered in sewage disposal device by pending former hydraulic pressure.The use of pressure head, can save a large amount of energy consumption.
2., when pending former water hydraulic pressure sets between hydraulic pressure or when pending former water hydraulic pressure sets between hydraulic pressure at minimum setting hydraulic pressure and low level at the highest setting hydraulic pressure and a high position, pending raw water pump enters in sewage disposal device by the variable frequency pump utilizing speed to regulate.Variable frequency pump is provided with the frequency converter with PID regulatory function, and this frequency converter can shorten the switching time between different frequency, thus can improve the efficiency of wastewater treatment.The model of variable frequency pump is preferably CX-B series constant pressure water supply automaton.In addition, the use of frequency converter, can save a large amount of energy consumption.
3., when pending former water hydraulic pressure is positioned at normal setting hydraulic pressure, directly utilize conventional water pump or variable frequency pump is adjusted to conventional sense, pending raw water pump is entered in sewage disposal device.
4., when pending former water hydraulic pressure is lower than minimum setting hydraulic pressure, after utilizing turbocharging water pump to increase pressure of supply water, pending raw water pump is entered in sewage disposal device.The use of turbocharging water pump, can make water pressure open speed and promote, make the fast quick-recovery of the discharge in sewage disposal device normal.
5. when pending former water, sewage outlet place hydraulic pressure and setting hydraulic pressure ratio are normal, and in the middle of wastewater treatment, the hydraulic pressure of water is abnormal, now, then needs to overhaul sewage disposal device.
Monitor and trend analysis above by the hydraulic pressure at water and sewage outlet place in the middle of pending former water, wastewater treatment, thus can make the hydraulic pressure at water and sewage outlet place in the middle of pending former water, wastewater treatment within long period of time, all steady state can be kept, thus water treatment constant mass, there will not be treatment sewage to have little time process or the processing time short, just directly discharge and the pollution problem that causes.
In addition, the internal face of the sewer line of above-mentioned sewage disposal device is provided with the macromolecular material that flow-passing surface can be made to have smooth surface, and this macromolecular material is preferably teflon.The use of polytetrafluoroethylmaterial material, can make the flow-passing surface of the internal face of sewer line smooth, thus avoid the pressure anomaly of inner pipeline plug plug and equipment self, thus makes wastewater treatment water pressure energy keep constant.
Claims (5)
1. a sewage water treatment method for water pressure invariableness, is characterized in that: comprise the following steps:
The first step, pending former water water pressure monitoring and trend map are drawn: by arrange at the water delivering orifice of pending former water be connected with PLC at line pressure sensor, at any time pressure detection is carried out to pending former water and draws pressure trend figure;
Second step, the hydraulic pressure of water detects and trend map is drawn in the middle of wastewater treatment: by arrange in the centre position of wastewater treatment that several are connected with PLC at line pressure sensor, wastewater treatment centre water is carried out to pressure detection at any time and draws pressure trend figure;
3rd step, the hydraulic pressure at sewage outlet place detects and trend map is drawn: by arrange at sewage outlet place be connected with PLC at line pressure sensor, the pressure at sewage outlet place is detected at any time and draws pressure trend figure;
4th step, hydraulic pressure value compares and trend map is drawn: by pending former water, the respective actual hydraulic pressure value in water and sewage outlet place and respective setting hydraulic pressure value compare and draw trend map in the middle of wastewater treatment; Several states that hydraulic pressure value compares are:
---when pending former water hydraulic pressure exceeds the highest setting water supply pressure, former water water pump cuts out, and utilizes pressure head automatically to enter in sewage disposal device by pending former hydraulic pressure;
---when pending former water hydraulic pressure sets between hydraulic pressure or when pending former water hydraulic pressure sets between hydraulic pressure at minimum setting hydraulic pressure and low level at the highest setting hydraulic pressure and a high position, pending raw water pump enters in sewage disposal device by the variable frequency pump utilizing speed to regulate;
---when pending former water hydraulic pressure is positioned at normal setting hydraulic pressure, directly utilizes conventional water pump or variable frequency pump is adjusted to conventional sense, pending raw water pump is entered in sewage disposal device;
---when pending former water hydraulic pressure is lower than minimum setting hydraulic pressure, after utilizing turbocharging water pump to increase pressure of supply water, pending raw water pump is entered in sewage disposal device;
---when pending former water, sewage outlet place hydraulic pressure and setting hydraulic pressure ratio are normal, and in the middle of wastewater treatment, the hydraulic pressure of water is abnormal, now, then needs to overhaul sewage disposal device.
2. the sewage water treatment method of water pressure invariableness according to claim 1, is characterized in that: described variable frequency pump is provided with the frequency converter with PID regulatory function, and this frequency converter can shorten the switching time between different frequency.
3. the sewage water treatment method of water pressure invariableness according to claim 1 and 2, is characterized in that: the model of described variable frequency pump is CX-B series constant pressure water supply automaton.
4. the sewage water treatment method of water pressure invariableness according to claim 1, is characterized in that: the internal face of the sewer line of described sewage disposal device is provided with the macromolecular material that flow-passing surface can be made to have smooth surface.
5. the sewage water treatment method of water pressure invariableness according to claim 4, is characterized in that: described macromolecular material is teflon.
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| CN201410559494.7A CN104460586B (en) | 2014-10-21 | 2014-10-21 | A kind of sewage water treatment method of water pressure invariableness |
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| CN201410559494.7A CN104460586B (en) | 2014-10-21 | 2014-10-21 | A kind of sewage water treatment method of water pressure invariableness |
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| CN1724107A (en) * | 2005-07-06 | 2006-01-25 | 陈子耀 | Sewage filter |
| CN2769254Y (en) * | 2004-07-02 | 2006-04-05 | 章秋永 | Automatic cleaning device for sewage filter |
| CN102600653A (en) * | 2012-03-16 | 2012-07-25 | 东南大学 | Sewage filter plant |
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| CN203465604U (en) * | 2013-08-23 | 2014-03-05 | 绿地环保科技股份有限公司 | Automatic control device for sewage-treatment reuse-water system |
| CN103626263A (en) * | 2013-11-27 | 2014-03-12 | 长沙中联重科环卫机械有限公司 | Method, device and system for treatment control of percolate and sewage treatment device |
| CN104060649A (en) * | 2014-07-15 | 2014-09-24 | 刘加福 | Intelligent remote network monitoring non-negative pressure variable-frequency constant pressure water supply device |
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2014
- 2014-10-21 CN CN201410559494.7A patent/CN104460586B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2769254Y (en) * | 2004-07-02 | 2006-04-05 | 章秋永 | Automatic cleaning device for sewage filter |
| CN1724107A (en) * | 2005-07-06 | 2006-01-25 | 陈子耀 | Sewage filter |
| CN102600653A (en) * | 2012-03-16 | 2012-07-25 | 东南大学 | Sewage filter plant |
| CN202909510U (en) * | 2012-12-05 | 2013-05-01 | 苏州新晨化纤有限公司 | Filter pressing system for sewage treatment of chemical fiber enterprises |
| CN203465604U (en) * | 2013-08-23 | 2014-03-05 | 绿地环保科技股份有限公司 | Automatic control device for sewage-treatment reuse-water system |
| CN103626263A (en) * | 2013-11-27 | 2014-03-12 | 长沙中联重科环卫机械有限公司 | Method, device and system for treatment control of percolate and sewage treatment device |
| CN104060649A (en) * | 2014-07-15 | 2014-09-24 | 刘加福 | Intelligent remote network monitoring non-negative pressure variable-frequency constant pressure water supply device |
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