CN112213460A - Water quality detection method for water supply pipeline - Google Patents
Water quality detection method for water supply pipeline Download PDFInfo
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- CN112213460A CN112213460A CN202011061612.3A CN202011061612A CN112213460A CN 112213460 A CN112213460 A CN 112213460A CN 202011061612 A CN202011061612 A CN 202011061612A CN 112213460 A CN112213460 A CN 112213460A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 353
- 238000001514 detection method Methods 0.000 title claims abstract description 84
- 230000000903 blocking effect Effects 0.000 claims description 23
- 238000012372 quality testing Methods 0.000 claims description 18
- 230000000087 stabilizing effect Effects 0.000 claims description 16
- 239000003651 drinking water Substances 0.000 claims description 13
- 235000020188 drinking water Nutrition 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000013316 zoning Methods 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 28
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 description 13
- 238000012544 monitoring process Methods 0.000 description 7
- 238000002955 isolation Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G01—MEASURING; TESTING
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Abstract
The invention relates to a water quality detection method for a water supply pipeline, which comprises the following steps: detecting whether the water in the main pipeline is full; if the water quality detection box is full of water, after a second preset time, opening the branch pipeline, and adjusting the pressure value in the branch pipeline to a preset value so as to enable the water to enter the water quality detection box; after the branch pipeline is closed, reading and uploading data measured by the water quality detection box; and detecting whether the water in the main pipeline is full or not again. According to the technical scheme, the opening of the branch pipeline is controlled at fixed time intervals, whether the water quality detection work of the water supply pipeline is normal or not can be judged more simply and conveniently during maintenance, the corresponding time interval of data acquisition is set at each time interval, the time interval of data acquisition is automatically changed under different water consumption conditions, the flexibility of data acquisition is improved, the different time intervals of data acquisition are set under different water quality parameter change conditions, the data acquisition is automatically changed according to the water quality change, the flexibility of data acquisition is improved, low-value data are reduced, and electric energy is saved.
Description
Technical Field
The invention relates to the technical field of water quality detection, in particular to a water quality detection method for a water supply pipeline.
Background
The safety problem of drinking water is related to thousands of households, guarantee drinking water safety is indelible, the pipeline laying of the water supply network is long and complicated, the drinking water needs to pass through long distance, long-time transport can reach the user, and because effects such as various physics, chemistry, microorganism in the transportation process, the drinking water is very easily polluted, water quality worsens, so it is very necessary to carry out real time monitoring and early warning to quality of water on the water supply network key point, however, large-scale quality of water off-line detection station is because the price is expensive, difficult wide application in each point of pipe network, quality of water on-line detection takes place at this time.
In the related art, most water supply pipelines adopt branch water quality detection devices, however, the problem that whether the branch water quality detection devices work normally or not is difficult to judge exists, the problem that the data acquisition mode of the water quality detection devices is not flexible enough exists, the time interval of data acquisition cannot be automatically changed according to the change of water quality and the difference of the working state of a water quality sensor, if the time interval of data acquisition is too small, a large amount of low-value data can be recorded, and the electric quantity consumed by the water quality detection devices during data acquisition is wasted; if the time interval of data acquisition is too large, important water quality change information can be omitted, and the purpose of effectively monitoring water quality change is difficult to achieve.
Disclosure of Invention
The invention aims to provide a water quality detection method for a water supply pipeline, which has a debugging process and can improve the efficiency of later-period inspection and maintenance, and the water quality detection method for the water supply pipeline considers the periodic variation trend of daily water consumption, so that the data acquisition time interval of a water quality sensor can be changed according to the change of water quality, thereby achieving the purposes of effectively monitoring the change of water quality and saving electricity and energy consumption and having better applicability.
In order to achieve the purpose, the invention adopts the following technical scheme:
in order to conveniently judge whether the water quality detection device of the water supply pipeline is in a normal working state or not during later-stage maintenance, the water quality detection method of the water supply pipeline is provided, and comprises the following steps: detecting whether the water in the main pipeline is full; if the water is not full, detecting whether the water in the main pipeline is full after a first preset time; if the branch pipe is full, after a second preset time, opening an upper branch pipe connected to the main pipe, and adjusting the pressure value in the branch pipe to a preset value so that water enters a water quality detection box on the branch pipe; closing the branch pipeline, and reading and uploading data measured by the water quality detection box; and detecting whether the water in the main pipeline is full.
Preferably, the bypass duct is opened and closed by a power device including a water pump and a ball valve, wherein the step of opening the bypass duct includes: starting the water pump, detecting and judging whether the pressure value in a branch pipeline is a preset value, if so, opening the ball valve, and sucking water in the main pipeline into the branch pipeline; the step of closing the bypass conduit comprises: and closing the ball valve, and closing the water pump after a third preset time.
Preferably, the step of adjusting the pressure value in the branch pipe to a preset value comprises: and a pressure reducing valve is arranged on one side of the branch pipeline close to the water inlet of the water quality detection box, the pressure reducing valve adjusts the pressure value of water sucked into the branch pipeline to a preset value, and the water after pressure adjustment enters the water quality detection box.
Preferably, power device still includes the pipe shell, the pipe shell includes first shell and the second shell that the interval set up, the ball valve install in the first shell, the water pump install in the second shell, first shell with branch road pipeline water inlet one side intercommunication sets up, the second shell with branch road pipeline water outlet one side intercommunication sets up.
Preferably, be equipped with the filter screen in the branch road pipeline, the filter screen is located the relief pressure valve with between the water quality testing box water inlet, the step of filtration suction branch road pipeline water-logging includes: and after the pressure value is adjusted to a preset value, water flow is filtered by the filter screen and enters the water quality detection box.
Preferably, one side that is close to the water inlet in the water quality testing box is provided with rivers subregion stabilizing mean, install water quality sensor on the water quality testing box, water quality sensor is located rivers subregion stabilizing mean is kept away from one side of water quality testing box water inlet, the rivers are in the step of stationary flow and subregion in the water quality testing box includes: and water flow enters the water quality detection box from the water inlet of the water quality detection box and contacts the water quality sensor after passing through the water flow partition stabilizing mechanism.
Preferably, the water flow partition stabilizing mechanism comprises a blocking piece arranged in the water quality detection box, a blocking body arranged on the blocking piece, and a separation block arranged on the surface of one side, close to the water quality sensor, of the blocking piece, an opening is formed in the blocking piece in a penetrating mode, one end of the opening faces the water inlet of the water quality detection box, the other end of the opening faces the water quality sensor, and the blocking body is located in the opening, or located on any side of the opening, or located on two sides of the opening.
In order to solve the problem that the water quality change is influenced under the condition of different water consumption and the time interval of data acquisition can be automatically changed, preferably, if the water consumption at the current time T is in a peak time period, if the water consumption is full, the branch pipeline is opened after a preset time T1; if the time is the valley time, after a preset time t2, opening the branch pipeline; and if the time is in the middle period between the valley and the peak, opening the branch pipeline after a preset time t3, wherein t2> t3> t 1.
In order to solve the problem that the time interval of data acquisition is automatically changed according to the change of water quality, preferably, if the water quality detection box is full of pipes, whether the measurement parameters in the water quality detection box reach the national standard is judged, and if the measurement parameters exceed the national standard, the branch pipeline is opened after a preset time t 4; if the branch pipeline meets the national standard, opening the branch pipeline after a preset time t 5; wherein t4< t 5.
Preferably, the national standard is x <1NT U, y >0.05mg/L, 6.5< z <8.5, where x is the turbidity value of the drinking water, y is the residual chlorine value of the drinking water, and z is the pH value of the drinking water.
Preferably, when the national standard is met, if the first standard is met, after a preset time t 5', the branch pipeline is opened; if the standard is the second standard, after the preset time t 5', opening the branch pipeline; wherein, t 5' > t5 ".
Preferably, when the national standard is met, judging whether x <0.8NT U, y >0.08mg/L and 6.8< z <7.8 are met, if yes, the first standard is determined; if not, the second standard is set.
Compared with the prior art, the invention has the beneficial effects that:
according to the technical scheme, the water supply pipeline water quality detection method is characterized in that a branch pipeline is fully arranged through a main pipeline, after second preset time, the branch pipeline is opened, water after pressure regulation enters a water quality detection box on the branch pipeline, then the branch pipeline is closed, data obtained by measurement of the water quality detection box is read and uploaded, whether the main pipeline is fully arranged is detected again, therefore, the branch pipeline is opened based on the fact that the main pipeline is fully arranged and the branch pipeline is opened, the second preset time is needed to be spaced, opening of the branch pipeline is controlled by a fixed time interval and used as a debugging link, whether water supply pipeline water quality detection work is normal can be judged more simply, opening of the branch pipeline is not affected by water quantity change of a user and water quality change in the water supply pipeline, later-stage inspection and maintenance efficiency is improved, and the water supply pipeline water quality detection method has better applicability.
The water consumption condition through judging current moment T belongs to which period, sets up corresponding data acquisition's time interval at every period to set up corresponding data acquisition's time interval based on every period, can automatic change data acquisition's time interval under the different water consumption condition, prevent the omission of important quality of water change data, improve data acquisition's flexibility ratio, reduce low value data, still practice thrift the electric energy simultaneously.
Whether the parameters measured by the water quality detection box reach the national standard or not is judged, different data acquisition time intervals are set in a one-to-one correspondence mode under the condition that the parameters accord with or do not accord with the national standard, different data acquisition time intervals are set based on different water quality parameter change conditions, the data acquisition is automatically changed according to the water quality change, the omission of important water quality change data is prevented, the flexibility of data acquisition is improved, low-value data are reduced, and meanwhile electric energy is saved.
Drawings
Fig. 1 is a first flow chart of a water quality detection method for a water supply pipeline according to a first embodiment of the present invention.
Fig. 2 is a flow chart of a water quality detection method for a water supply pipeline in the first embodiment of the invention.
Fig. 3 is a flow chart of a water quality detection method for a water supply pipeline in an embodiment of the invention.
Fig. 4 is a fourth flowchart of a water quality detection method for a water supply pipeline in the second embodiment of the invention.
Fig. 5 is a fifth flowchart of a water quality detection method for a water supply pipeline in the third embodiment of the invention.
FIG. 6 is a schematic view of a water supply pipe according to an embodiment of the present invention.
Fig. 7 is a schematic cross-sectional view of fig. 6.
Fig. 8 is a partially enlarged view of a portion a shown in fig. 7.
Fig. 9 is a partially enlarged view of the portion B shown in fig. 7.
Fig. 10 is a partially enlarged schematic view of the portion C shown in fig. 7.
Fig. 11 is a cross-sectional view of a portion of the assembly shown in fig. 6.
Fig. 12 is a schematic view of the water flow zoning stabilizing mechanism of fig. 6.
Description of the symbols of the drawings:
1. a main pipeline; 2. a branch pipeline; 3. a water quality detection box; 31. a water quality sensor; 4. a power plant; 41. a water pump; 42. a ball valve; 43. a pipe shell; 431. a first shell portion; 432. a second shell portion; 433. A third shell portion; 44. a pressure sensor; 5. a pressure reducing valve; 6. filtering with a screen; 7. a water flow partition stabilizing mechanism; 71. a stopper; 711. an opening; 72. a blocking body; 73. an isolation block; 8. a liquid level sensor.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
Referring to fig. 1-3 and fig. 6-12, in an embodiment of the present invention, a method for detecting water quality of a water supply pipeline includes the following steps: detecting whether the water in the main pipeline 1 is full; if the water is not full, detecting whether the water in the main pipeline 1 is full after a first preset time; if the water quality detection box is full, after a second preset time, opening a branch pipeline 2 connected to the main pipeline 1, and adjusting the pressure value in the branch pipeline 2 to a preset value so as to enable water to enter the water quality detection box 3 on the branch pipeline 2; closing the branch pipeline 2, and reading and uploading data measured by the water quality detection box 3; and detecting whether the water in the main pipeline 1 is full or not again.
It can be understood that a liquid level sensor 8 is arranged at a water inlet of the branch pipeline 2, the liquid level sensor 8 is in the prior art, the liquid level sensor 8 is used for detecting whether the water in the main pipeline 1 is full, if the water in the main pipeline 1 is not full, an alarm is given to display that the main pipeline 1 is not full, and whether the water in the main pipeline 1 is full is detected again after a first preset time; if the main pipeline 1 is full of water, the branch pipeline 2 is opened after a second preset time, the pressure value in the branch pipeline 2 is adjusted to 0.1MPa, the water after pressure adjustment enters the water quality detection box 3 on the branch pipeline 2, then the branch pipeline 2 is closed, the data obtained by measuring the water quality detection box 3 is read through a data monitor (not shown), the data monitor uploads the data to a platform through an antenna (not shown), whether the water in the main pipeline 1 is full of water is detected again, based on the fact that the branch pipeline 1 is full of water and the branch pipeline 2 is opened, the second preset time is needed to be spaced, the opening of the branch pipeline 2 is controlled through a fixed time interval, the water quality detection is used as a debugging link, whether the water quality detection of the water supply pipeline works normally can be judged more simply, and the opening of the branch pipeline 2 is not affected by the water quantity change of a user and the change in the water supply pipeline, the efficiency of later stage inspection maintenance is improved.
Wherein, through power device 4 switching said branch road pipeline 2, power device 4 includes water pump 41 and ball valve 42, open the step of said branch road pipeline 2 includes: starting the water pump 41, detecting and judging whether the pressure value in the branch pipeline 2 is a preset value, if so, opening the ball valve 42, and sucking water in the main pipeline 1 into the branch pipeline 2; the step of closing the by-pass duct 2 comprises: and closing the ball valve 42, and closing the water pump 41 after a third preset time.
It is understood that the cartridge 43 further includes a third shell portion 433 disposed between the first and second shell portions 431 and 432, the third shell portion 433 having a pressure sensor 44 mounted therein, detecting whether the pressure value in the branch pipeline 2 is a preset value of 0.1MPa or not through the pressure sensor 44, opening the ball valve 42, introducing water into the branch pipeline 2, and after a preset time, for example, 15 seconds, after all the water in the water quality detecting box 3 is replaced with new water, the ball valve 42 is closed, and after the third preset time, for example, 5 seconds, the water pump 41 is turned off, a preset time interval is set after the water pump 41 is turned off, for example, 2 minutes, the data obtained by the measurement in the water quality testing box 3 is read by the data monitoring instrument, and the data read in the time period is used as the water quality parameter value of the new water in the water quality testing box 3.
The power device 4 further comprises a pipe shell 43, the pipe shell 43 comprises a first shell portion 431 and a second shell portion 432 which are arranged at intervals, the ball valve 42 is installed in the first shell portion 431, the water pump 41 is installed in the second shell portion 432, the first shell portion 431 is communicated with one side of a water inlet of the branch pipeline 2, the second shell portion 432 is communicated with one side of a water outlet of the branch pipeline 2, and it can be understood that the first shell portion 431 and the second shell portion 432 are integrally formed, and the first shell portion 431 and the second shell portion 432 do not need to be installed, so that the sealing performance on the branch pipeline 2 is improved, and the assembling efficiency is also improved.
Wherein, the step of adjusting the pressure value in the branch pipeline 2 to a preset value comprises: the branch pipeline 2 is close to one side of the water inlet of the water quality detection box 3 is provided with a pressure reducing valve 5, the pressure reducing valve 5 is used for sucking the pressure value of water in the branch pipeline 2 to be adjusted to 0.1MPa, and the water after pressure adjustment enters the water quality detection box 3, so that the water quality sensor 31 is used for measuring the water quality detection box 3 in a pressure stabilizing environment.
Wherein, be equipped with filter screen 6 in the branch road pipeline 2, filter screen 6 is located relief pressure valve 5 with between the 3 water inlets of water quality testing box, filter and inhale the step of branch road pipeline 2 internal water includes: after the pressure value is adjusted to the default, the process filter screen 6 filters, and the rivers get into in the water quality testing box 3, can understand, through filter screen 6 filters and is used for getting rid of the aquatic contains great particulate matter or other debris, avoids the water that contains debris to get into in the water quality testing box 3, influences turbidity sensor's light path or the electrochemical reaction of chlorine residue sensor, pH sensor electrode, damages water quality sensor 31 even, and then influences the accuracy of water quality measurement result.
In addition, one side that is close to the water inlet in the water quality testing box 3 is provided with rivers subregion stabilizing mean 7, install quality of water sensor 31 on the water quality testing box 3, quality of water sensor 31 is located rivers subregion stabilizing mean 7 is kept away from one side of water quality testing box 3 water inlet, rivers are in the step of stationary flow and subregion includes in the water quality testing box 3: the rivers by the water inlet of water quality testing box 3 gets into in the water quality testing box 3, process behind the rivers subregion stabilizing mean 7 with quality of water sensor 31 contact, can understand, quality of water sensor 31 for example, turbidity sensor, chlorine residue sensor and pH sensor pass through behind the rivers subregion stabilizing mean 77, to being close to the water of quality of water sensor 31 response end play the isolation, improve quality of water sensor 31's measurement accuracy.
The water flow zoning stabilizing mechanism 7 comprises a stopper 71 arranged in the water quality detection box 3, a stopper 72 arranged on the stopper 71, and a spacer 73 arranged on the surface of one side of the stopper 71 close to the water quality sensor 31, an opening 711 is formed in the stopper 71 in a penetrating manner, one end of the opening 711 faces the water inlet of the water quality detection box 3, the other end of the opening 711 faces the water quality sensor 31, and the stopper 72 is positioned in the opening 711, or positioned on either side of the opening 711, or positioned on both sides of the opening 711. In other embodiments, the opening 711 can be disposed in other forms, for example, the opening 711 is disposed on the stopper 71 in a skewed shape, a twisted shape, or the like.
It can be understood that the blocking body 72 divides the opening 711 into a plurality of parts, the blocking body 72 divides the water flow entering the water quality detection box 3 from the water inlet, and simultaneously, since the blocking body 72 also blocks the water flow, compared with the opening 711 without the blocking body 72, the flow rate of the water flow passing through the opening 711 is reduced and the water flow is reduced in the same time, and the water flow is stable when passing through the divided opening 711 due to the buffering of the blocking body 72, so that the measurement accuracy of the water quality sensor 31 is greatly improved, the isolation block 73 is located at a position where the blocking member 71 is not provided with the opening 711, and the isolation block 73 is integrally arranged on the blocking member 71, so that the assembly is not needed, the operation efficiency is improved, and the structure is more stable.
When a plurality of water quality sensors 31 are provided, the isolation block 73 is used for arranging the water quality sensors 31 at intervals, each water quality sensor 31 is in a different water flow field, so that each water quality sensor 31 is in a better working state at the same time, the measurement accuracy of the water quality sensor 31 is improved, under the combined action of the isolation block 73, the stopper 71 and the baffle 72, the water quality sensors 31 close to the sensing end of the water quality sensors 31 are isolated, further, the water flow passes through the opening 711 to wash and clean the sensing end of the water quality sensors 31, and organic matters, inorganic matters, microorganisms and the like in the water are prevented from being attached to the sensing end of the water quality sensors 31 to influence the measurement accuracy of the water quality sensors 31.
In one embodiment, the difference from the previous embodiment is that the blocking body 72 is located on either side of the opening 711 in this embodiment, and it can be understood that the water flow entering the water quality detecting box 3 from the water inlet is divided by the blocking body 72, and this embodiment has the same technical effect as the previous embodiment.
In one embodiment, the difference between the two embodiments is that the blocking bodies 72 are located at two sides of the opening 711 in this embodiment, which has the same technical effect as the previous embodiment.
Referring to fig. 1, 4 and 6, a second embodiment of the present invention is different from the first embodiment in that if the pipe is full, it is determined whether the water consumption at the current time T is in a peak time period, and if so, the branch pipe 2 is opened after a preset time T1; if the time is the valley time, after a preset time t2, opening the branch pipeline 2; if the time is in the middle between the valley and the peak, the branch pipeline 2 is opened after the preset time t3, wherein t2> t3> t 1.
It can be understood that when the water consumption of a user is in a peak period of 24 hours a day, the water flow speed is high, the water quality in the current water supply pipeline node depends on the upstream water quality, when the upstream water quality parameter value of the water supply pipeline node exceeds the standard, the water quality flowing into the node is deteriorated, in this case, the parameter values measured by the turbidity sensor, the residual chlorine sensor and the pH sensor are changed quickly, and the sampling time interval is required to be shortened to increase the sampling frequency; in the valley period, the water flow speed is low, the influence of microorganisms in the water supply pipeline of the current node on the water quality is large, and the sampling time interval can be increased to reduce the sampling frequency and achieve the purpose of saving electricity because the influence of the microorganisms on the change of the water quality detection parameter value is low; in the middle period, the water quality detection parameter value changes between a peak and a valley, and the sampling frequency is also between the peak and the valley, so that t2> t3> t1, and as a preferred embodiment, t2 is 15 minutes, t3 is 7 minutes, and t1 is 3 minutes.
This embodiment controls opening of branch pipeline 2 through the timing mode, under the condition of different water consumption, sets up different sampling time interval again in order to obtain different sampling frequency, can automatic change data acquisition frequency promptly, improves data acquisition's flexibility ratio, prevents the omission of important quality of water change data, reaches the purpose of economize on electricity, is favorable to realizing sustainable development.
In the case of general residential water consumption, the timing mode of the embodiment has six key time nodes, where 0 < T1< T2< T3< T4< T5< T6<24, where, for example, T1 is the next day 5, T2 is 8, T3 is 11, T4 is 15, T5 is 20, and T6 is 23; as another example, the peak hours are 7 hours-12 hours and 15 hours-19 hours; the trough time period is 22 hours-4 hours the next day; the intermediate time periods are 4 hours-7 hours, 12 hours-15 hours, and 19 hours-22 hours, among six key time nodes, T1 is the next day 4 hour, T2 is 7 hours, T3 is 12 hours, T4 is 15 hours, T5 is 19 hours, and T6 is 22 hours. In other embodiments, the number of the key time nodes can be set to be more or less than 6 at other times when the users are industrial enterprises or mainly industrial enterprises.
Referring to fig. 1, 5-7, a third embodiment of the present invention is different from the first and second embodiments in that if the water quality detecting box 3 is full of water, it is determined whether the measured parameters in the water quality detecting box reach the national standard, and if the measured parameters exceed the national standard, the branch pipeline 2 is opened after a preset time t 4; if the standard is met, opening the branch pipeline 2 after a preset time t 5; wherein t4< t 5.
It can be understood that when the parameter value measured by the water quality detection box 3 exceeds the national standard, the sampling time interval needs to be shortened to increase the sampling frequency, i.e. the number of times of starting the water pump 41 in the branch pipeline 2 is increased, so as to closely monitor the change of the water quality; when the national standard is met, the times of water quality detection are reduced, namely the times of starting the water pump 41 are reduced, the sampling time interval is increased to reduce the sampling frequency, and the electric energy can be saved, so that t4 is less than t 5; this embodiment controls through the change situation of quality of water parameter value opening of branch road pipeline 2 sets up different data acquisition time intervals under the change situation of different quality of water parameters for according to the automatic collection that changes data of quality of water change, improve data acquisition's flexibility ratio, the monitoring quality of water change situation that can be more effective prevents the omission of important quality of water change data, can also economize on electricity simultaneously.
The invention uses three water quality sensors 31 of a turbidity sensor, a residual chlorine sensor and a pH sensor to monitor water quality, the national standards are x <1NT U, y >0.05mg/L, 6.5< z <8.5, wherein x is the turbidity value of drinking water, y is the residual chlorine value of the drinking water, and z is the pH value of the drinking water, and the invention can understand that when one index in x, y and z does not accord with the national standard, namely the water quality exceeds the standard, the water quality change condition needs to be closely monitored, and the opening times of the water pump 41 is increased; when the three indexes of x, y and z reach the national standard, the water quality reaches the standard.
When the national standard is met, judging whether x <0.8NT U, y >0.08mg/L and 6.8< z <7.8 are satisfied, if so, determining that the x <0.8NT U, y >0.08mg/L and z <7.8 z are the first standard, and opening the branch pipeline 2 after a preset time t 5'; if the standard is not satisfied, the standard is the second standard, and after a preset time t5 ″, the branch pipeline 2 is opened; wherein t 5' > t5 ", it can be understood that, in the case of compliance with the national standard, the first standard is only met if all three indexes x <0.8NT U, y >0.08mg/L, 6.8< z <7.8 are met; if one parameter does not reach the standard, the parameter is the second standard, and the water quality of the first standard is better than the water quality of the second standard, so that compared with the water quality of the second standard, when the water quality is the first standard, the sampling time interval can be increased to reduce the sampling frequency, the number of times of water quality detection is reduced, namely the number of times of opening the branch pipeline 2 is reduced, the water quality monitoring is realized, and meanwhile, the consumption of electric energy can be reduced, so that t5 '> t 5'.
In a preferred embodiment, t4 is 3 minutes, t 5' is 15 minutes, and t5 "is 7 minutes.
In the first embodiment, the second embodiment and the third embodiment of the present invention, three modes for controlling the opening of the branch pipeline 2 are formed, and the modes can be switched to use, and the three control modes are manually implemented by an operator on a water supply pipeline controller or a remote monitoring platform, wherein the second embodiment and the third embodiment belong to a parallel relationship, and compared with the first embodiment, a judgment condition is added to control the opening of the water pump 41 in the branch pipeline 2.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (12)
1. A water quality detection method for a water supply pipeline is characterized by comprising the following steps:
detecting whether the water in the main pipeline (1) is full;
if the water is not full, detecting whether the water in the main pipeline (1) is full after a first preset time;
if the branch pipe is full, after a second preset time, opening a branch pipe (2) connected to the main pipe (1), and adjusting the pressure value in the branch pipe (2) to a preset value so as to enable water to enter a water quality detection box (3) on the branch pipe (2); the branch pipeline (2) is closed, and then data obtained by measurement of the water quality detection box (3) are read and uploaded; and detecting whether the water in the main pipeline (1) is full or not again.
2. The water supply pipeline water quality detection method according to claim 1, wherein the branch pipeline (2) is opened and closed by a power device (4), the power device (4) comprises a water pump (41) and a ball valve (42), and wherein the step of opening the branch pipeline (2) comprises: starting the water pump (41), detecting and judging whether the pressure value in the branch pipeline (2) is a preset value, if so, opening the ball valve (42), and sucking water in the main pipeline (1) into the branch pipeline (2); the step of closing the by-pass conduit (2) comprises: and closing the ball valve (42), and closing the water pump (41) after a third preset time.
3. The water quality detection method of the water supply pipeline according to claim 2, characterized in that the step of adjusting the pressure value inside the branch pipeline (2) to a preset value comprises: one side of the branch pipeline (2) close to the water inlet of the water quality detection box (3) is provided with a pressure reducing valve (5), the pressure reducing valve (5) regulates the pressure value of water sucked into the branch pipeline (2) to a preset value, and the water after pressure regulation enters the water quality detection box (3).
4. The water quality detection method of the water supply pipeline according to claim 2, wherein the power device (4) further comprises a pipe shell (43), the pipe shell (43) comprises a first shell part (431) and a second shell part (432) which are arranged at intervals, the ball valve (42) is installed in the first shell part (431), the water pump (41) is installed in the second shell part (432), the first shell part (431) is communicated with one side of the water inlet of the branch pipeline (2), and the second shell part (432) is communicated with one side of the water outlet of the branch pipeline (2).
5. The water quality detection method of the water supply pipeline according to claim 3, wherein a filter screen (6) is arranged in the branch pipeline (2), the filter screen (6) is positioned between the pressure reducing valve (5) and the water inlet of the water quality detection box (3), and the step of filtering the water sucked into the branch pipeline (2) comprises the following steps: after the pressure value is adjusted to a preset value, water flow is filtered by the filter screen (6) and enters the water quality detection box (3).
6. The water quality detection method of the water supply pipeline according to claim 5, wherein a water flow partition stabilizing mechanism (7) is arranged at one side of the water quality detection box (3) close to the water inlet, a water quality sensor (31) is arranged on the water quality detection box (3), the water quality sensor (31) is positioned at one side of the water flow partition stabilizing mechanism (7) far away from the water inlet of the water quality detection box (3), and the steps of stabilizing and partitioning the water flow in the water quality detection box (3) comprise: the water flow enters the water quality detection box (3) from the water inlet of the water quality detection box (3) and contacts the water quality sensor (31) after passing through the water flow partition stabilizing mechanism (7).
7. The water quality detection method of the water supply pipeline according to claim 6, wherein the water flow zoning stabilization mechanism (7) comprises a blocking member (71) arranged in the water quality detection box (3), a blocking body (72) arranged on the blocking member (71), and a spacer block (73) arranged on one side surface of the blocking member (71) close to the water quality sensor (31), an opening (711) is formed in the blocking member (71) in a penetrating manner, one end of the opening (711) faces the water inlet of the water quality detection box (3), the other end of the opening (711) faces the water quality sensor (31), and the blocking body (72) is positioned in the opening (711), or positioned on either side of the opening (711), or positioned on both sides of the opening (711).
8. The water quality testing method for a water supply pipeline according to any one of claims 1 to 7,
if the water supply pipe is full, judging whether the water consumption at the current time T is in a peak time period, if so, opening the branch pipeline (2) after a preset time T1; if the time is the valley time, after the preset time t2, opening the branch pipeline (2); if the time is in the middle between the low valley and the high peak, the branch pipeline (2) is opened after the preset time t3, wherein t2> t3> t 1.
9. The water supply pipeline water quality detection method according to any one of claims 1 to 7, characterized in that if the water supply pipeline is full, whether the measured parameters in the water quality detection box (3) meet the national standard is judged, and if the measured parameters exceed the national standard, the branch pipeline (2) is opened after a preset time t 4; if the standard meets the national standard, opening the branch pipeline (2) after a preset time t 5; wherein t4< t 5.
10. The method of claim 9, wherein the national standard is x <1NTU, y >0.05mg/L, 6.5< z <8.5, wherein x is turbidity value of the drinking water, y is residual chlorine value of the drinking water, and z is pH value of the drinking water.
11. The water quality detection method of the water supply pipeline according to claim 10, characterized in that when the national standard is met, if the national standard is the first standard, the branch pipeline (2) is opened after a preset time t 5'; if the standard is the second standard, after the preset time t 5', opening the branch pipeline (2); wherein, t 5' > t5 ".
12. The water quality testing method of claim 11, wherein when the national standard is met, it is determined whether x <0.8NTU, y >0.08mg/L, 6.8< z <7.8, and if yes, it is the first standard; if not, the second standard is set.
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