CN116794253A - Multi-parameter water quality on-line monitoring system and method - Google Patents
Multi-parameter water quality on-line monitoring system and method Download PDFInfo
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- CN116794253A CN116794253A CN202310575282.7A CN202310575282A CN116794253A CN 116794253 A CN116794253 A CN 116794253A CN 202310575282 A CN202310575282 A CN 202310575282A CN 116794253 A CN116794253 A CN 116794253A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 323
- 238000012544 monitoring process Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 52
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 14
- 229910052801 chlorine Inorganic materials 0.000 claims description 14
- 239000000460 chlorine Substances 0.000 claims description 14
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 239000010865 sewage Substances 0.000 claims description 6
- 238000001139 pH measurement Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model provides a multiparameter water quality on-line monitoring system and method, the water inlet of relief valve links to each other with outside inlet tube in this system, the delivery port of relief valve links to each other with the water inlet of three-way valve, the normally closed interface of three-way valve links to each other with the water inlet of slow flow pond, the normally open interface of three-way valve links to each other with the water inlet of waiting pond, the delivery port of slow flow pond is connected electrode measuring pond and turbidity measuring pond respectively, the overflow mouth of slow flow pond, the delivery port of turbidity measuring pond and the delivery port of electrode measuring pond link to each other with the water inlet of waiting pond respectively, be provided with at least one measuring electrode in the electrode measuring pond, waiting pond bottom is provided with level sensor. The multi-parameter water quality on-line monitoring system and the method can enlarge the applicable water pressure range; the accuracy of water quality parameter measurement is improved; the automatic monitoring of the water quality is realized, the efficiency of the water quality monitoring is improved, the maintenance period of the water quality on-line monitoring system is prolonged, the service life of the system is prolonged, and the cost of the water quality on-line monitoring is reduced.
Description
Technical Field
The disclosure relates to the technical field of water quality monitoring, in particular to a multi-parameter water quality on-line monitoring system and method.
Background
The main measurement parameters for monitoring the water quality of the drinking water are turbidity, residual chlorine, PH and conductivity, wherein the turbidity measurement is influenced by bubbles, and the measurement of the residual chlorine, PH and conductivity is influenced by flow velocity.
The current common water quality monitoring scheme mainly comprises the steps of releasing air in water by making the water pressure in a measuring tank consistent with the atmospheric pressure, eliminating the influence of bubbles on turbidity measurement, inserting electrodes for measuring residual chlorine, pH value or conductivity in the cavity of the measuring tank, and arranging a water outflow port in the measuring tank, thereby ensuring the stable flow velocity of water in the measuring tank and realizing the measurement of the residual chlorine, the pH value and the conductivity. The method for monitoring the water quality has the following problems:
first, the measuring cell can not be suitable for the great environment of pressure fluctuation, and when the water pressure became big, water in the measuring cell probably can be because come not enough to discharge and lead to spilling over to equipment inside, causes equipment damage, improves monitoring cost.
Secondly, the application scene of the intermittent water supply is not adapted, a large amount of air can appear in the intermittent water supply in the first few minutes of water supply and the water is more turbid, the speed of releasing the air by the measuring pool cannot be kept up, the measurement of turbidity can be influenced, meanwhile, the turbid water also can pollute the measuring electrode and the measuring pool, and the maintenance period of equipment and the service life of the measuring electrode are greatly reduced.
Disclosure of Invention
An object of the present disclosure is to provide a multi-parameter water quality on-line monitoring system and method that can address one or more of the above-mentioned prior art problems.
According to one aspect of the present disclosure, there is provided a multiparameter water quality on-line monitoring system, including a pressure reducing valve, a three-way valve, a slow flow tank, an electrode measuring tank, a turbidity measuring tank and an isopipe, wherein a water inlet of the pressure reducing valve is connected with an external water inlet pipe, a water outlet of the pressure reducing valve is connected with a water inlet of the three-way valve, a normally closed interface of the three-way valve is connected with a water inlet of the slow flow tank, a normally open interface of the three-way valve is connected with a water inlet of the isopipe, a water outlet of the slow flow tank is respectively connected with a water inlet of the electrode measuring tank and a water inlet of the turbidity measuring tank, an overflow port of the slow flow tank is connected with a water inlet of the isopipe, a water outlet of the turbidity measuring tank is connected with a water inlet of the isopipe, a water outlet of the isopipe is connected with an external water outlet pipe, and a liquid level sensor is provided at a bottom of the isopipe.
In some embodiments, the device further comprises a normally closed two-way valve, wherein the water inlet of the normally closed two-way valve is connected with the sewage outlet of the turbidity measuring tank, and the water outlet of the normally closed two-way valve is connected with the water inlet of the waiting water tank.
In some embodiments, the system further comprises a control module, wherein the control module is electrically connected with the three-way valve and the normally closed two-way valve, and the control module is used for controlling the three-way valve and the normally closed two-way valve to be opened and closed.
In some embodiments, the measurement electrode is any one of a PH measurement electrode, a residual chlorine measurement electrode, and a conductivity measurement electrode.
In some embodiments, the slow flow cell is provided with two water outlets, one water outlet is connected with the water inlet of the electrode measuring cell, and the other water outlet is connected with the water inlet of the turbidity measuring cell.
According to another aspect of the present disclosure, there is provided a multi-parameter water quality online monitoring method, which is applied to any one of the above multi-parameter water quality online monitoring systems, including the steps of:
step 1.1: the multi-parameter water quality monitoring system is electrified and initialized, at the moment, the three-way valve is not electrified, and water flows into the waiting water tank from a normally open interface of the three-way valve after passing through the pressure reducing valve and is discharged from a water outlet of the waiting water tank;
step 1.2: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, executing step 1.3, and if the liquid level sensor is not conducted, water inflow is abnormal, and repeatedly executing step 1.2;
step 1.3: starting a preset first timer;
step 1.4: acquiring signals of a liquid level sensor at the bottom of the waiting pool, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, and returning to the step 1.2;
step 1.5: when the timing of the first timer is finished, a preset second timer is started, the three-way valve is electrified, the normally closed interface of the three-way valve is opened, water flows into the slow flow tank from the normally closed interface of the three-way valve, and flows into the electrode measuring tank and the turbidity measuring tank from the water outlet of the slow flow tank;
step 1.6: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, sending alarm information, and returning to the step 1.2;
step 1.7: starting a preset third timer when the second timer finishes timing, and starting to measure water quality parameters in the electrode measuring pool and the turbidity measuring pool;
step 1.8: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, sending alarm information, and returning to the step 1.2;
step 1.9: and (2) after the third timer is finished, the three-way valve is powered off, water directly flows into the waiting water tank from a normally open interface of the three-way valve and flows out from a water outlet of the waiting water tank, and the step (1.2) is executed.
In some embodiments, in step 1.9, the normally closed two-way valve between the drain of the turbidity measuring tank and the water inlet of the isopipe is powered, and water enters the isopipe through the drain of the turbidity measuring tank and is emptied from the isopipe.
In some embodiments, the duration set by the first timer is used for evacuating water and air in an external water inlet pipe connected with the water inlet of the three-way valve; the second timer is used for enabling the water to be filled in the slow flow tank, the electrode measuring tank and the turbidity measuring tank; the duration set by the third timer is used for monitoring the water quality parameters.
In some embodiments, in step 1.7, the water quality parameter measured in the electrode measuring cell is at least one of PH, residual chlorine, and conductivity.
In some embodiments, in step 1.5, after water flows into the slow flow cell from the normally closed interface of the three-way valve, it flows into the electrode measuring cell and the turbidity measuring cell through the two water outlets of the slow flow cell, respectively.
According to the multi-parameter water quality on-line monitoring system and method, the pressure reducing valve is arranged at the water inlet pipe of the system, so that the water pressure range applicable to the system is enlarged; through the arrangement of the three-way valve and the equal water tank, air and muddy water in the pipeline can be effectively discharged; by arranging the slow flow pool and arranging the overflow port on the slow flow pool, the flow velocity of the liquid in the slow flow pool is stable, and the measurement result of residual chlorine, pH or conductivity is more accurate; the slow flow pool for controlling the flow rate of the liquid is separated from the electrode measuring pool and the turbidity measuring pool, so that on one hand, the electrode can be prevented from being polluted, and on the other hand, the slow flow pool, the electrode measuring pool, the turbidity measuring pool and the water pools can further buffer the water pressure, and the negative influence of the water on the system caused by incapability of timely discharging the water when the water pressure is overlarge is avoided; the liquid level information of the equal water tank is acquired through the liquid level sensor arranged in the equal water tank, the current water flow condition is convenient to judge, and the automatic monitoring of water quality is realized by matching with the use of the three-way valve. Therefore, the efficiency of water quality monitoring is improved, the maintenance period of the water quality online monitoring system is prolonged, the service life of the system is prolonged, and the cost of water quality online monitoring is reduced.
In addition, in the technical solutions of the present disclosure, the technical solutions may be implemented by adopting conventional means in the art, which are not specifically described.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a multi-parameter water quality on-line monitoring system according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are illustrative of some, but not all embodiments of the disclosure and are not intended to limit the disclosure. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "both ends", "two sides", "bottom", "top", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," "superior," "subordinate," "primary," "secondary," and the like are used for descriptive purposes only and may be used simply to more clearly distinguish between different components and are not to be construed as indicating or implying relative importance.
In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.
In addition, technical features related to different embodiments of the present disclosure described below may be combined with each other as long as they do not make a conflict with each other.
Example 1:
in this embodiment, a multi-parameter water quality online monitoring system is provided, and referring to fig. 1 of the specification, the system comprises a pressure reducing valve 1, a three-way valve 2, a slow flow tank 3, an electrode measuring tank 4, a turbidity measuring tank 5 and an equal water tank 6.
The water inlet of the pressure reducing valve 1 is connected with an external water inlet pipe, the water outlet of the pressure reducing valve 1 is connected with the water inlet of the three-way valve 2, the normally closed interface of the three-way valve 2 is connected with the water inlet of the slow flow pool 3, the normally open interface of the three-way valve 2 is connected with the water inlet of the equal water pool 6, the water outlet of the slow flow pool 3 is respectively connected with the water inlet of the electrode measuring pool 4 and the water inlet of the turbidity measuring pool 5, the overflow port of the slow flow pool 3 is connected with the water inlet of the equal water pool 6, the water outlet of the turbidity measuring pool 5 is connected with the water inlet of the equal water pool 6, the water outlet of the equal water pool 6 is connected with an external water outlet pipe, and the bottom of the equal water pool 6 is provided with the liquid level sensor 7.
According to the multi-parameter water quality online monitoring system, the pressure reducing valve 1 is arranged at the external water inlet pipe, so that the water pressure range applicable to the multi-parameter water quality online monitoring system can be effectively enlarged; through the arrangement of the three-way valve 2 and the equal water tank 6, air and muddy water in the water inlet pipeline can be effectively discharged in the initial stage of water supply; by arranging the slow flow tank 3 and arranging an overflow port on the slow flow tank 3, the flow speed of the liquid in the slow flow tank 3 is stable, and the accuracy of the measurement result of residual chlorine, pH or conductivity is improved; the slow flow pool 3 for controlling the flow rate of the liquid is separated from the electrode measuring pool 4 and the turbidity measuring pool 5, so that on one hand, the pollution of a measuring electrode can be avoided, and on the other hand, the slow flow pool 3, the electrode measuring pool 4, the turbidity measuring pool 5 and the equal water pool 6 can further buffer the water pressure, and the negative influence of the water on the whole system caused by incapability of timely discharging when the water pressure is overlarge is avoided; through the liquid level sensor 7 that sets up in waiting pond 6, can acquire waiting pond's liquid level information, be convenient for judge current rivers condition, cooperate the control to three-way valve 2 switching, can enough guarantee the measurement interval of quality of water parameter, can realize the automated monitoring of quality of water again.
In an alternative embodiment, the multi-parameter water quality online monitoring system can further comprise a normally-closed two-way valve 8, wherein a water inlet of the normally-closed two-way valve 8 is connected with a sewage outlet of the turbidity measuring tank 5, and a water outlet of the normally-closed two-way valve 8 is connected with a water inlet of the waiting water tank 6. Therefore, the normally closed two-way valve can be opened after the water quality parameter is measured, and the emptying speed of the turbidity measuring tank is accelerated.
In an alternative embodiment, the multi-parameter water quality online monitoring system may further comprise a control module. The control module is electrically connected with the three-way valve 2 and the normally closed two-way valve 8, and is used for controlling the opening and closing of the three-way valve 2 and the normally closed two-way valve 8. A plurality of timers can be preset in the control module, and the three-way valve 2 and the normally closed two-way valve 8 are controlled to be opened and closed by the timers, so that the automatic control of the on-line monitoring of the multi-parameter water quality is realized, the artificial participation degree in the water quality monitoring is reduced, and the cost of the water quality monitoring is reduced.
In an alternative embodiment, the measurement electrode is any one of a PH measurement electrode, a residual chlorine measurement electrode, and a conductivity measurement electrode. In this embodiment, three measuring electrodes, namely a PH measuring electrode, a residual chlorine measuring electrode and a conductivity measuring electrode, are disposed on the cavity of the electrode measuring cell 4.
In an alternative embodiment, the slow flow cell 3 is provided with two water outlets, one water outlet being connected to the water inlet of the electrode measuring cell 4 and the other water outlet being connected to the water inlet of the turbidity measuring cell 5. Therefore, the water in the slow flow tank 3 is discharged in an accelerated manner, and system pollution or system faults caused by water in the slow flow tank 3 overflowing the slow flow tank and entering the system are avoided.
The multi-parameter water quality on-line monitoring system provided by the disclosure can effectively improve the efficiency of water quality monitoring, improve the accuracy of water quality parameter measurement, prolong the maintenance period of the water quality on-line monitoring system, prolong the service life of the system and reduce the cost of water quality on-line monitoring.
Example 2:
the embodiment of the disclosure also provides a multi-parameter water quality online monitoring method, which is applied to any multi-parameter water quality online monitoring system in the above embodiment, and comprises the following steps:
step 1.1: the multi-parameter water quality monitoring system is electrified and initialized, at the moment, the three-way valve is not electrified, and water flows into the waiting water tank from a normally open interface of the three-way valve after passing through the pressure reducing valve and is discharged from a water outlet of the waiting water tank;
step 1.2: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, executing step 1.3, and if the liquid level sensor is not conducted, water inflow is abnormal, and repeatedly executing step 1.2;
step 1.3: starting a preset first timer;
step 1.4: acquiring signals of a liquid level sensor at the bottom of the waiting pool, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, and returning to the step 1.2;
step 1.5: when the timing of the first timer is finished, a preset second timer is started, the three-way valve is electrified, the normally closed interface of the three-way valve is opened, water flows into the slow flow tank from the normally closed interface of the three-way valve, and flows into the electrode measuring tank and the turbidity measuring tank from the water outlet of the slow flow tank;
step 1.6: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, sending alarm information, and returning to the step 1.2;
step 1.7: starting a preset third timer when the second timer finishes timing, and starting to measure water quality parameters in the electrode measuring pool and the turbidity measuring pool;
step 1.8: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, sending alarm information, and returning to the step 1.2;
step 1.9: and (2) after the third timer is finished, the three-way valve is powered off, water directly flows into the waiting water tank from a normally open interface of the three-way valve and flows out from a water outlet of the waiting water tank, and the step (1.2) is executed.
In an alternative embodiment, a normally-closed two-way valve is arranged between a sewage outlet of the turbidity measuring tank and a water inlet of the equal water tank, at this time, in the step 1.1, after the multi-parameter water quality monitoring system is electrified, the normally-closed two-way valve is opened, at this time, water in the turbidity measuring tank enters the equal water tank through the normally-closed two-way valve and is discharged, so that the influence of residual water in the turbidity measuring tank on the detection result of the next monitoring period is avoided, and the accuracy of turbidity measurement is improved.
When a normally closed two-way valve is arranged between the sewage outlet of the turbidity measuring tank and the water inlet of the waiting water tank, in the step 1.9, when the third timer finishes, the normally closed two-way valve is electrified, and water enters the waiting water tank through the sewage outlet of the turbidity measuring tank and is emptied by the waiting water tank. Therefore, after the current monitoring period is finished, water in the turbidity measuring tank is discharged, the influence of residual water in the turbidity measuring tank on the detection result of the next monitoring period is avoided, and the turbidity measuring precision is improved.
In an alternative embodiment, the duration set by the first timer is used for evacuating water and air in an external water inlet pipe connected with the water inlet of the three-way valve; the second timer is used for enabling the water to be filled in the slow flow tank, the electrode measuring tank and the turbidity measuring tank; the duration set by the third timer is used for measuring the water quality parameter.
Specifically, the second timer is set, so that the slow flow pool, the electrode measuring pool and the turbidity measuring pool are filled with water within the time set by the second timer, in the process, water still flows into the waiting pool from the water outlet of the electrode measuring pool, the water outlet of the turbidity measuring pool and the overflow port of the slow flow pool, water is always in the waiting pool, and water is prevented from being fed in the waiting pool, so that misjudgment of water feeding abnormality caused by liquid level reduction in the waiting pool by the liquid level sensor is avoided, and water quality monitoring is affected.
In an alternative embodiment, in step 1.7, the water quality parameter measured in the electrode measuring cell is at least one of PH, residual chlorine and conductivity. In the present embodiment, it is possible to
In an alternative embodiment, in step 1.5, after water flows into the slow flow tank from the normally closed interface of the three-way valve, the water flows into the electrode measuring tank and the turbidity measuring tank respectively through two water outlets of the slow flow tank.
According to the multi-parameter water quality on-line monitoring method, the pressure reducing valve is arranged at the water inlet pipe of the system, so that the water pressure range applicable to the system is enlarged; through the arrangement of the three-way valve and the equal water tank, air and muddy water in the pipeline can be effectively discharged, and pollution to the slow flow tank and the measuring electrode is avoided; by arranging the slow flow pool and arranging the overflow port on the slow flow pool, the flow velocity of the liquid in the slow flow pool is stable, and the measurement result of residual chlorine, pH or conductivity is more accurate; the slow flow pool for controlling the flow rate of the liquid is separated from the electrode measuring pool and the turbidity measuring pool, so that on one hand, the electrode can be prevented from being polluted, and on the other hand, the slow flow pool, the electrode measuring pool, the turbidity measuring pool and the water pools can further buffer the water pressure, and the negative influence of the water on the system caused by incapability of timely discharging the water when the water pressure is overlarge is avoided; through the level sensor who waits to set up in the pond, acquire the liquid level information who waits the pond, be convenient for judge current rivers condition, cooperate the use of three-way valve, realize the automated monitoring of quality of water, through setting up a plurality of timers, with the timer realization timing advance, effectively guarantee the measurement interval. Therefore, the efficiency of water quality monitoring is improved, the maintenance period of the water quality online monitoring system is prolonged, the service life of the system is prolonged, and the cost of water quality online monitoring is reduced.
In the embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment.
In addition, each functional unit in each embodiment of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as stand alone products. Based on such understanding, the technical solution of the present disclosure may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure. And the aforementioned storage medium includes: a usb disk, a read-only memory, a random access memory, a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely an alternative embodiment of the disclosure, and it should be noted that it would be apparent to those skilled in the art that several modifications and adaptations can be made without departing from the principles of the disclosure, which are also intended to be within the scope of the disclosure.
Claims (10)
1. The multi-parameter water quality on-line monitoring system is characterized in that,
comprises a pressure reducing valve (1), a three-way valve (2), a slow flow tank (3), an electrode measuring tank (4), a turbidity measuring tank (5) and an equal water tank (6),
the water inlet of the pressure reducing valve (1) is connected with an external water inlet pipe,
the water outlet of the pressure reducing valve (1) is connected with the water inlet of the three-way valve (2),
the normally closed interface of the three-way valve (2) is connected with the water inlet of the slow flow pool (3), the normally open interface of the three-way valve (2) is connected with the water inlet of the equal water pool (6),
the water outlet of the slow flow tank (3) is respectively connected with the water inlet of the electrode measuring tank (4) and the water inlet of the turbidity measuring tank (5),
the overflow port of the slow flow pool (3) is connected with the water inlet of the equal water pool (6),
the water outlet of the electrode measuring pool (4) is connected with the water inlet of the equal water pool (6), at least one measuring electrode is arranged in the electrode measuring pool (4),
the water outlet of the turbidity measuring tank (5) is connected with the water inlet of the equal water tank (6),
the water outlet of the equal water tank (6) is connected with an external water outlet pipe, and a liquid level sensor (7) is arranged at the bottom of the equal water tank (6).
2. The multi-parameter online water quality monitoring system according to claim 1, further comprising a normally closed two-way valve (8), wherein a water inlet of the normally closed two-way valve (8) is connected with a sewage outlet of the turbidity measuring tank (5), and a water outlet of the normally closed two-way valve (8) is connected with a water inlet of the waiting water tank (6).
3. The multi-parameter water quality online monitoring system according to claim 2, further comprising a control module electrically connected with the three-way valve (2) and the normally closed two-way valve (8), wherein the control module is used for controlling the opening and closing of the three-way valve (2) and the normally closed two-way valve (8).
4. The multi-parameter on-line water quality monitoring system of claim 1, wherein the measurement electrode is any one of a PH measurement electrode, a residual chlorine measurement electrode, and a conductivity measurement electrode.
5. The multi-parameter water quality online monitoring system according to claim 1, wherein the slow flow tank (3) is provided with two water outlets, one water outlet is connected with the water inlet of the electrode measuring tank (4), and the other water outlet is connected with the water inlet of the turbidity measuring tank (5).
6. The multi-parameter water quality on-line monitoring method applied to the multi-parameter water quality on-line monitoring system of any one of claims 1 to 5 is characterized by comprising the following steps:
step 1.1: the multi-parameter water quality monitoring system is electrified and initialized, at the moment, the three-way valve is not electrified, and water flows into the waiting water tank from a normally open interface of the three-way valve after passing through the pressure reducing valve and is discharged from a water outlet of the waiting water tank;
step 1.2: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, executing step 1.3, and if the liquid level sensor is not conducted, water inflow is abnormal, and repeatedly executing step 1.2;
step 1.3: starting a preset first timer;
step 1.4: acquiring signals of a liquid level sensor at the bottom of the waiting pool, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, and returning to the step 1.2;
step 1.5: when the timing of the first timer is finished, a preset second timer is started, the three-way valve is electrified, the normally closed interface of the three-way valve is opened, water flows into the slow flow tank from the normally closed interface of the three-way valve, and flows into the electrode measuring tank and the turbidity measuring tank from the water outlet of the slow flow tank;
step 1.6: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, sending alarm information, and returning to the step 1.2;
step 1.7: starting a preset third timer when the second timer finishes timing, and starting to measure water quality parameters in the electrode measuring pool and the turbidity measuring pool;
step 1.8: acquiring signals of a liquid level sensor at the bottom of the waiting water tank, judging whether water inflow is normal at the moment, if the liquid level sensor is conducted, water inflow is normal, continuing timing, if the liquid level sensor is not conducted, water inflow is abnormal, stopping timing, sending alarm information, and returning to the step 1.2;
step 1.9: and (2) after the third timer is finished, the three-way valve is powered off, water directly flows into the waiting water tank from a normally open interface of the three-way valve and flows out from a water outlet of the waiting water tank, and the step (1.2) is executed.
7. The on-line monitoring method of multi-parameter water quality according to claim 6, wherein in step 1.9, the normally closed two-way valve between the drain of the turbidity measuring tank and the water inlet of the isopipe is powered, and water enters the isopipe through the drain of the turbidity measuring tank and is drained from the isopipe.
8. The on-line monitoring method of multi-parameter water quality according to claim 6, wherein the duration set by the first timer is used for evacuating water and air in an external water inlet pipe connected with a water inlet of the three-way valve;
the time length set by the second timer is used for enabling the water to be filled in the slow flow tank, the electrode measuring tank and the turbidity measuring tank;
and the duration set by the third timer is used for monitoring the water quality parameters.
9. The method according to claim 6, wherein in step 1.7, the water quality parameter measured in the electrode measuring cell is at least one of PH, residual chlorine and conductivity.
10. The on-line monitoring method of multi-parameter water quality according to claim 6, wherein in the step 1.5, after water flows into the slow flow tank from the normally closed interface of the three-way valve, the water flows into the electrode measuring tank and the turbidity measuring tank through two water outlets of the slow flow tank, respectively.
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