CN112213460B - Water quality detection method for water supply pipeline - Google Patents
Water quality detection method for water supply pipeline Download PDFInfo
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- CN112213460B CN112213460B CN202011061612.3A CN202011061612A CN112213460B CN 112213460 B CN112213460 B CN 112213460B CN 202011061612 A CN202011061612 A CN 202011061612A CN 112213460 B CN112213460 B CN 112213460B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 348
- 238000001514 detection method Methods 0.000 title claims abstract description 76
- 230000000087 stabilizing effect Effects 0.000 claims description 16
- 238000012372 quality testing Methods 0.000 claims description 14
- 239000003651 drinking water Substances 0.000 claims description 13
- 235000020188 drinking water Nutrition 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 13
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- 239000000460 chlorine Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 6
- 244000005700 microbiome Species 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 28
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 description 13
- 238000005259 measurement Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method 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
- 238000004140 cleaning Methods 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
- 239000002245 particle Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
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- Measuring Volume Flow (AREA)
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 pipe is full, opening the branch pipeline after a second preset time, and adjusting the pressure value in the branch pipeline to a preset value so that water enters the water quality detection box; after the branch pipeline is closed, reading and uploading data measured by the water quality detection box; again, it is checked whether the main pipe is full of water. According to the technical scheme, the opening of the branch pipeline is controlled through the fixed time interval, 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 for data acquisition is set through each time interval, the time interval for data acquisition is automatically changed under different water consumption conditions, the flexibility of data acquisition is improved, the different time intervals for data acquisition are set through different water quality parameter change conditions, the data acquisition is automatically changed according to water quality change, the flexibility of data acquisition is improved, low-value data is reduced, and meanwhile 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 families, the safety of drinking water is guaranteed, the pipeline laying of a water supply network is long and complex, the drinking water can reach users only through long-distance and long-time transportation, in the transportation process, the drinking water is easy to pollute and the water quality is deteriorated due to the functions of various physical, chemical, microorganism and the like, so that real-time monitoring and early warning of the water quality on key points of the water supply network are very necessary, however, a large-scale off-line water quality detection station is difficult to widely apply to various points of the network due to high price, and water quality on-line detection is generated at the moment.
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 is difficult to judge, the problem that the data acquisition mode of the water quality detection devices is not flexible enough also exists, the time interval of data acquisition cannot be automatically changed according to the change of water quality and the difference of the working states of water quality sensors, 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 in data acquisition is wasted; if the time interval of data acquisition is too large, important water quality change information can be omitted, and the aim 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, can improve the efficiency of later inspection and maintenance, considers the periodical change trend of daily water consumption, and enables the data acquisition time interval of a water quality sensor to be changed according to the change of water quality, thereby achieving the purposes of effectively monitoring the change of water quality and saving electric energy consumption and having better applicability.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in order to facilitate judging whether the water quality detection device of the water supply pipeline is in a normal working state or not during the later 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 pipe is not full, detecting whether the water in the main pipe is full or not again after the first preset time; if the pipe is full, opening a branch pipeline connected to the main pipeline after a second preset time, and adjusting the pressure value in the branch pipeline to a preset value so that water enters a water quality detection box on the branch pipeline; closing the branch pipeline, and then reading and uploading data obtained by measuring the water quality detection box; and detecting whether the water in the main pipeline is full.
Preferably, the bypass pipe is opened and closed by a power device, the power device comprises a water pump and a ball valve, wherein the step of opening the bypass pipe comprises: starting the water pump, detecting and judging whether the pressure value in the branch pipeline is a preset value, if so, opening the ball valve, and sucking the water in the main pipeline into the branch pipeline; the step of closing the bypass duct 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 bypass conduit to a preset value comprises: the pressure reducing valve is arranged on one side of the branch pipeline, which is close to the water inlet of the water quality detection box, and is used for adjusting 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, the power device further comprises a tube shell, the tube shell comprises a first shell part and a second shell part which are arranged at intervals, the ball valve is installed in the first shell part, the water pump is installed in the second shell part, the first shell part is communicated with one side of the water inlet of the branch pipeline, and the second shell part is communicated with one side of the water outlet of the branch pipeline.
Preferably, a filter screen is arranged in the branch pipeline, the filter screen is positioned between the pressure reducing valve and the water inlet of the water quality detection box, and the step of filtering and sucking water in the branch pipeline comprises the following steps: after the pressure value is regulated to a preset value, water flows through the filter screen to enter the water quality detection box.
Preferably, one side of the water quality detecting box, which is close to the water inlet, is provided with a water flow partition stabilizing mechanism, a water quality sensor is installed on the water quality detecting box, the water quality sensor is positioned on one side of the water flow partition stabilizing mechanism, which is far away from the water inlet of the water quality detecting box, and the water flow is in the water quality detecting box, and the steps of stabilizing and partitioning the water flow include: the water flow enters the water quality detection box from the water inlet of the water quality detection box, passes through the water flow partition stabilizing mechanism and then contacts with the water quality sensor.
Preferably, the water flow partition stabilizing mechanism comprises a baffle arranged in the water quality detection box, a baffle arranged on the baffle, and a separation block arranged on the surface of one side of the baffle, which is close to the water quality sensor, an opening is formed in the baffle in a penetrating manner, 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 baffle is positioned in the opening, or positioned on either side of the opening, or positioned on both sides of the opening.
In order to solve the problem that the water quality change is affected under the condition of different water consumption, and the time interval of data acquisition can be automatically changed, preferably, if the pipe is full, judging whether the water consumption at the current moment T is in a peak period, if so, opening the branch pipeline after the preset time T1; if the period is the valley period, opening the branch pipeline after the preset time t 2; if the intermediate period between the valley and the peak is over a preset time t3, opening the branch pipeline, wherein t2> t3> t1.
In order to solve the problem of automatically changing the time interval of data acquisition according to the change of water quality, preferably, if the pipe is full, judging whether the measurement parameter in the water quality detection box reaches the national standard, if the measurement parameter exceeds the national standard, opening the branch pipeline after the preset time t 4; if the national standard is met, opening the branch pipeline after the preset time t5; wherein t4< t5.
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 standard is the first standard, opening the branch pipeline after a preset time t5' elapses; if the first standard is the second standard, opening the branch pipeline after the preset time t5' elapses; wherein t5' > 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, and if yes, determining that the first standard is met; and if not, the second standard is obtained.
Compared with the prior art, the invention has the beneficial effects that:
according to the water quality detection method for the water supply pipeline, provided by the technical scheme, the main pipeline is full, after the second preset time, the branch pipeline is opened, the water after pressure regulation enters the water quality detection box on the branch pipeline, then the branch pipeline is closed, the data obtained by measurement of the water quality detection box are read and uploaded, and whether the main pipeline is full is detected again, so that the opening of the branch pipeline is controlled by a fixed time interval based on the second preset time between the opening of the main pipeline and the opening of the branch pipeline, and the opening of the branch pipeline is used as a debugging link, so that whether the water quality detection work of the water supply pipeline is normal can be judged more simply, the opening of the branch pipeline is not influenced by the water consumption change of a user and the water quality change in the water supply pipeline, the later inspection and maintenance efficiency is improved, and the water quality detection method has good applicability.
By judging which time period the water consumption condition of the current moment T belongs to, and setting the corresponding data acquisition time interval in each time period, the corresponding data acquisition time interval is set on the basis of each time period, the data acquisition time interval can be automatically changed under different water consumption conditions, omission of important water quality change data is prevented, the flexibility of data acquisition is improved, low-value data is reduced, and meanwhile electric energy is saved.
By judging whether the parameters measured by the water quality detection box reach the national standard or not, different data acquisition time intervals are set in one-to-one correspondence under the condition of conforming to or not conforming to the national standard, so that the data acquisition time intervals are set based on the change condition of different water quality parameters, 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 is reduced, and meanwhile, electric energy is also saved.
Drawings
FIG. 1 is a 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 II of a water quality detection method for a water supply pipeline according to the first embodiment of the invention.
FIG. 3 is a flow chart III of a water quality detection method for a water supply pipeline according to the first embodiment of the invention.
Fig. 4 is a flowchart of a water quality detection method for a water supply pipeline according to a second embodiment of the present invention.
FIG. 5 is a flow chart of a water quality testing method for a water supply pipeline according to a third embodiment of the present invention.
Fig. 6 is a schematic view of a water supply pipe in an embodiment of the present invention.
Fig. 7 is a schematic cross-sectional view of fig. 6.
Fig. 8 is an enlarged partial schematic view at a shown in fig. 7.
Fig. 9 is a partially enlarged schematic view of fig. 7B.
Fig. 10 is an enlarged partial schematic view at 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 partition stabilizing mechanism shown in FIG. 6.
Description of the drawings:
1. a main pipe; 2. a branch pipe; 3. a water quality detection box; 31. a water quality sensor; 4. a power device; 41. a water pump; 42. a ball valve; 43. a tube 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. a filter screen; 7. a water flow partition stabilizing mechanism; 71. a blocking member; 711. an opening; 72. a baffle; 73. a spacer block; 8. a liquid level sensor.
Detailed Description
The invention will now be described in more detail with reference to the accompanying drawings, to which it should be noted that the description is given by way of illustration only and not by way of limitation. Various embodiments may be combined with one another to form further embodiments not shown in the following description.
Referring to fig. 1-3 and fig. 6-12, a water quality detection method for a water supply pipeline is provided in a first embodiment of the present invention, which includes the following steps: detecting whether the water in the main pipeline 1 is full; if the pipe is not full, detecting whether the water in the main pipe 1 is full or not again after the first preset time; if the pipe is full, opening a branch pipeline 2 connected to the main pipeline 1 after a second preset time, and adjusting the pressure value in the branch pipeline 2 to a preset value so that water enters a water quality detection box 3 on the branch pipeline 2; closing the branch pipeline 2, and then reading and uploading data obtained by measuring the water quality detection box 3; again, it is checked whether the water in the main pipe 1 is full.
It can be understood that the water inlet of the branch pipeline 2 is provided with a liquid level sensor 8, 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, and the water in the main pipeline 1 is detected again after a first preset time; if the main pipe 1 is full, after a second preset time, the branch pipe 2 is opened, the pressure value in the branch pipe 2 is adjusted to 0.1MPa, the water after pressure adjustment enters the water quality detection box 3 on the branch pipe 2, then the branch pipe 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 pipe 1 is full is detected again, the opening of the branch pipe 2 is controlled by a fixed time interval based on the second preset time required between the opening of the main pipe 1 and the opening of the branch pipe 2, so that the water quality detection of the water supply pipe can be judged more simply as a debugging link, the opening of the branch pipe 2 is not influenced by the water consumption change of a user and the water quality change in the water supply pipe, and the efficiency of later inspection and maintenance is improved.
Wherein, open and close the branch pipeline 2 through power device 4, power device 4 includes water pump 41 and ball valve 42, and the step of opening the branch 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 the water in the main pipeline 1 into the branch pipeline 2; the step of closing the bypass duct 2 comprises: the ball valve 42 is closed, and after a third preset time, the water pump 41 is turned off.
It may be appreciated that the pipe case 43 further includes a third casing portion 433 disposed between the first casing portion 431 and the second casing portion 432, a pressure sensor 44 is installed in the third casing portion 433, whether the pressure value in the branch pipe 2 is a preset value of 0.1MPa is detected by the pressure sensor 44, after the ball valve 42 is opened, water is introduced into the branch pipe 2, after a preset time, for example, 15 seconds, the water in the water quality detection box 3 is replaced with new water, the ball valve 42 is closed, after a third preset time, for example, 5 seconds, the water pump 41 is closed, a preset time interval, for example, 2 minutes, is timed after the water pump 41 is closed, the data obtained by measurement in the water quality detection box 3 is read by the data monitor, and the data read during the time is used as the water quality parameter value of the new water in the water quality detection 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 is understood that the first shell portion 431 and the second shell portion 432 are integrally formed, the first shell portion 431 and the second shell portion 432 are not required to be installed, the tightness on the branch pipeline 2 is improved, and the assembly efficiency is improved.
Wherein the step of adjusting the pressure value in the branch pipeline 2 to a preset value comprises the following steps: the side of the branch pipeline 2, which is close to the water inlet of the water quality detection box 3, is provided with a pressure reducing valve 5, the pressure value of water sucked into the branch pipeline 2 is regulated to 0.1MPa by the pressure reducing valve 5, and the regulated water enters the water quality detection box 3, so that the water quality sensor 31 is measured in the stable pressure environment of the water quality detection box 3.
Wherein, be equipped with filter screen 6 in the branch road pipeline 2, filter screen 6 is located relief pressure valve 5 with water quality testing box 3 water inlet between, the filtration is inhaled the step of branch road pipeline 2 internal water includes: after the pressure value is adjusted to a preset value, the water flows into the water quality detection box 3 through the filtering of the filter screen 6, and it can be understood that the water containing larger particles or other impurities in the water is filtered through the filter screen 6, so that the water containing the impurities is prevented from entering the water quality detection box 3, the light path of the turbidity sensor or the electrochemical reaction of the residual chlorine sensor and the pH sensor electrode are influenced, the water quality sensor 31 is even damaged, and the accuracy of the water quality measurement result is further influenced.
In addition, one side of the water quality detecting box 3, which is close to the water inlet, is provided with a water flow partition stabilizing mechanism 7, the water quality detecting box 3 is provided with a water quality sensor 31, the water quality sensor 31 is positioned on one side of the water flow partition stabilizing mechanism 7, which is far away from the water inlet of the water quality detecting box 3, and the water flow in the water quality detecting box 3 is stabilized and partitioned by the steps of: the water flow enters the water quality detection box 3 from the water inlet of the water quality detection box 3, passes through the water flow partition stabilizing mechanism 7 and then contacts with the water quality sensor 31, and it can be understood that the water quality sensor 31, for example, a turbidity sensor, a residual chlorine sensor and a pH sensor, is isolated from a water body close to the sensing end of the water quality sensor 31 after passing through the water flow partition stabilizing mechanism 77, and the measurement accuracy of the water quality sensor 31 is improved.
The water flow partition stabilizing mechanism 7 comprises a baffle 71 arranged in the water quality detection box 3, a baffle 72 arranged on the baffle 71, and a separation block 73 arranged on one side surface of the baffle 71 close to the water quality sensor 31, wherein an opening 711 is formed in the baffle 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 baffle 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 provided in other forms, such as, for example, the opening 711 being provided in a skewed, twisted, etc. manner through the stop 71.
It will be appreciated that the baffle 72 divides the opening 711 into several parts, the baffle 72 divides the water flow entering the water quality detecting box 3 from the water inlet, meanwhile, as the baffle 72 also plays a role in blocking the water flow, compared with the opening 711 without the baffle 72, the flow speed of the water flow passing through the opening 711 is reduced, the water flow is reduced, the buffering of the baffle 72 causes the water flow to be flattened and stabilized when passing through the divided opening 711, the measuring precision of the water quality sensor 31 is greatly improved, the isolation block 73 is positioned at the position where the baffle 71 is not provided with the opening 711, the isolation block 73 is integrally arranged on the baffle 71, the assembly is not needed, the operation efficiency is improved, and the structure is more stable.
When the number of the water quality sensors 31 is plural, the isolation blocks 73 are used for setting the water quality sensors 31 at intervals, and the water quality sensors 31 are in different water flow fields, so that the water quality sensors 31 are in a better working state at the same time, the measurement accuracy of the water quality sensors 31 is improved, under the combined action of the isolation blocks 73, the baffle 71 and the baffle 72, the isolation function is performed on the water body close to the sensing end of the water quality sensors 31, and further, the water flows through the openings 711 to perform the scouring and cleaning functions on the sensing end of the water quality sensors 31, so that the organic matters, inorganic matters, microorganisms and the like in the water are prevented from adhering to the sensing end of the water quality sensors 31, and the measurement accuracy of the water quality sensors 31 is prevented from being affected.
In one embodiment, the difference from the previous embodiment is that the baffle 72 is located at either side of the opening 711, and it can be understood that the water flow entering the water quality detecting box 3 through the water inlet is split by the baffle 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 the present embodiment, which has the same technical effect as the previous embodiment.
Referring to fig. 1, 4 and 6, the difference between the second embodiment of the present invention and the first embodiment is that if the pipe is full, it is determined whether the water consumption at the current time T is in the peak period, if yes, the branch pipe 2 is opened after the preset time T1; if the period is the valley period, opening the branch pipeline 2 after the preset time t 2; if the intermediate period between the valley and the peak is elapsed, opening the branch pipeline 2 after a preset time t3, wherein t2> t3> t1.
It will be appreciated that when the user water usage is at peak hours of 24 hours a day, the water flow rate is faster, the current water quality in the water supply pipe node depends on the upstream water quality, and when the upstream water quality parameter value of the water supply pipe node exceeds the standard, the water quality flowing into the node is deteriorated, in which case the parameter values measured by the turbidity sensor, the residual chlorine sensor and the pH sensor change faster, and the sampling time interval needs to be shortened to increase the sampling frequency; in the valley period, the water flow speed is slower, the influence of microorganisms in the current node water supply pipeline on the water quality is larger, and the sampling time interval can be increased to reduce the sampling frequency due to the slower influence of the microorganisms on the change of the water quality detection parameter value, so that the purpose of saving electricity can be achieved; in the middle period, the water quality detection parameter value is changed 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.
In this embodiment, the opening of the branch pipeline 2 is controlled by the timing mode, and under the condition of different water consumption, different sampling time intervals are set to obtain different sampling frequencies, that is, the data acquisition frequency can be automatically changed, the flexibility of data acquisition is improved, the omission of important water quality change data is prevented, the purpose of saving electricity is achieved, and sustainable development is facilitated.
In the case of general residential water usage, the timing pattern of this embodiment has six key time nodes, where < T1< T2< T3< T4< T5< T6<24 times, 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 times; for another example, the peak time period is 7-12 hours and 15-19 hours; the trough period is 22 hours-the next 4 hours; among the six key time nodes, T1 is the next time of day 4, T2 is 7, T3 is 12, T4 is 15, T5 is 19 and T6 is 22, and the intermediate time period is 4-7, 12-15 and 19-22. In other embodiments, the critical time nodes can be set to other times, and in the case that the user is an industrial enterprise or is mainly an industrial enterprise, the number of critical time nodes is greater than or less than 6.
Referring to fig. 1, 5-7, the difference between the third embodiment of the present invention and the first and second embodiments is that if the pipe is full, it is determined whether the measured parameter in the water quality detection box 3 reaches the national standard, if the measured parameter exceeds the national standard, the branch pipeline 2 is opened after a preset time t 4; if the national standard is met, opening the branch pipeline 2 after the preset time t5; wherein t4< t5.
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, that is, the number of times the water pump 41 in the branch pipeline 2 is turned on is increased, so that the water quality change is closely monitored; when the national standard is met, the water quality detection times are reduced, namely, the water pump 41 is started, the sampling time interval is increased to reduce the sampling frequency, and the electric energy can be saved, so that t4 is less than t5; according to the embodiment, the opening of the branch pipeline 2 is controlled through the change condition of the water quality parameter value, different data acquisition time intervals are set under the change condition of different water quality parameters, so that the data acquisition is automatically changed according to the water quality change, the flexibility of data acquisition is improved, the water quality change condition can be effectively monitored, the omission of important water quality change data is prevented, and meanwhile, electricity can be saved.
The invention uses three water quality sensors 31 of turbidity sensor, residual chlorine sensor and pH sensor to monitor water quality, the national standard is 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 drinking water, z is the pH value of drinking water, it can be understood that, when one index in x, y, z does not meet the national standard, namely, the water quality exceeds standard, the water quality change condition needs to be closely monitored, and the number of times of opening 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 met, if yes, opening the branch pipeline 2 after a preset time t5' is passed, wherein the first standard is met; if not, the second standard is the second standard, and after a preset time t5' is passed, the branch pipeline 2 is opened; wherein, t5' > t5", it can be understood that under the condition of conforming to the national standard, only when x <0.8NT U, y >0.08mg/L, and 6.8< z <7.8 all reach, the first standard is satisfied; if one parameter does not reach the standard, namely the second standard, the water quality of the first standard is better than the water quality of the second standard, so 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, and the consumption of electric energy can be reduced while the water quality monitoring is realized, so that t5' > t5".
In a preferred embodiment, t4 is 3 minutes, t5' is 15 minutes, and t5 "is 7 minutes.
In the first embodiment, the second embodiment and the third embodiment form three sets of modes for controlling the opening of the branch pipeline 2, the three modes can be switched to use, and the three control modes are manually realized 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 for controlling 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 scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (9)
1. The water quality detection method for the water supply pipeline is characterized by comprising the following steps of:
detecting whether the water in the main pipeline (1) is full;
if the pipe is not full, detecting whether the water in the main pipe (1) is full or not after the first preset time;
if the pipe is full, opening a branch pipeline (2) connected to the main pipeline (1) after a second preset time, and adjusting the pressure value in the branch pipeline (2) to a preset value so that water enters a water quality detection box (3) on the branch pipeline (2); closing the branch pipeline (2), and then reading and uploading data obtained by measuring the water quality detection box (3); detecting whether the water in the main pipeline (1) is full;
if the pipe is full, judging whether the water consumption at the current moment T is in a peak period, if so, opening the branch pipeline (2) after the preset time T1 passes, wherein the water quality in the current water supply pipeline node depends on the upstream water quality; if the period is a valley period, the influence of microorganisms on water quality is increased, and after a preset time t2, the branch pipeline (2) is opened; if the intermediate period between the valley and the peak is over a preset time t3, opening the branch pipeline (2), wherein t2> t3> t1;
one side that is close to the water inlet in water quality testing box (3) is provided with rivers subregion stabilizing mean (7), install water quality sensor (31) on water quality testing box (3), water quality sensor (31) are located rivers subregion stabilizing mean (7) are kept away from one side of water quality testing box (3) water inlet, and the rivers are in stationary flow and subregion's step includes in water quality testing box (3): the water flow enters the water quality detection box (3) from the water inlet of the water quality detection box (3) and contacts with the water quality sensor (31) after passing through the water flow partition stabilizing mechanism (7);
the water flow partition stabilizing mechanism (7) comprises a baffle (71) arranged in the water quality detection box (3), a baffle body (72) arranged on the baffle (71), and an isolation block (73) arranged on one side surface of the baffle (71) close to the water quality sensor (31), an opening (711) is formed in the baffle (71) in a penetrating mode, one end of the opening (711) faces to a water inlet of the water quality detection box (3), the other end of the opening (711) faces to the water quality sensor (31), and the baffle body (72) is arranged in the opening (711) or on any side of the opening (711) or on two sides of the opening (711).
2. A water supply pipe water quality detection method according to claim 1, wherein the branch pipe (2) is opened and closed by a power device (4), the power device (4) including a water pump (41) and a ball valve (42), wherein the step of opening the branch pipe (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 the water in the main pipeline (1) into the branch pipeline (2); the step of closing the bypass duct (2) comprises: and closing the ball valve (42), and after a third preset time, closing the water pump (41).
3. A water supply pipe water quality testing method according to claim 2, characterized in that the step of adjusting the pressure value in the branch pipe (2) to a preset value comprises: the utility model discloses a water quality testing box, including branch road pipeline (2), water quality testing box (3), branch road pipeline (2) are provided with relief pressure valve (5) near one side of water inlet of water quality testing box (3), relief pressure valve (5) are with the suction the pressure value of water in branch road pipeline (2) is adjusted to preset value, and the water after the pressure regulating gets into in water quality testing box (3).
4. The water quality detection method of a 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 the water inlet side of the branch pipeline (2), and the second shell part (432) is communicated with the water outlet side of the branch pipeline (2).
5. A water quality testing method for 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 testing box (3), and the step of filtering and sucking water in the branch pipeline (2) comprises the following steps: after the pressure value is regulated to a preset value, water flows through the filter screen (6) and enters the water quality detection box (3).
6. The water supply pipe water quality detection method according to any one of claims 1 to 5, wherein if the pipe is full, it is judged whether the measured parameter in the water quality detection box (3) reaches a national standard, and if the measured parameter exceeds the national standard, the branch pipe (2) is opened after a preset time t4 has elapsed; if the national standard is met, opening the branch pipeline (2) after the preset time t5; wherein t4< t5.
7. The method for detecting the water quality of a water supply pipeline according to claim 6, wherein the national standard is x <1NTU, 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 drinking water, and z is the pH value of drinking water.
8. The water quality testing method of a water supply pipe according to claim 7, wherein when the national standard is met, if the first standard is met, opening the branch pipe (2) after a preset time t5' elapses; if the standard is the second standard, opening the branch pipeline (2) after the preset time t5' elapses; wherein t5' > t5".
9. The water supply pipe water quality detection method according to claim 8, wherein when the national standard is met, judging whether x <0.8ntu, y >0.08mg/L,6.8< z <7.8 are met, and if yes, determining the first standard; and if not, the second standard is obtained.
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