CN102735511A - Water quality monitoring method and system - Google Patents
Water quality monitoring method and system Download PDFInfo
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- CN102735511A CN102735511A CN2012102357457A CN201210235745A CN102735511A CN 102735511 A CN102735511 A CN 102735511A CN 2012102357457 A CN2012102357457 A CN 2012102357457A CN 201210235745 A CN201210235745 A CN 201210235745A CN 102735511 A CN102735511 A CN 102735511A
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Abstract
The invention provides a water quality monitoring system which comprises a sedimentation basin, a separation device, an aspiration device, a sample basin, a cleaning device and an analysis device, wherein the sedimentation basin is communicated with a water source to be monitored; the separation device is arranged in the sedimentation basin and used for separating solid substances in a water sample to be monitored in the sedimentation basin; the aspiration device is arranged at the downstream part of the separation device; the input end and the output end of the aspiration device are respectively communicated with the sedimentation basin and the sample basin; the output end of the sample basin is connected with the analysis device; the cleaning device is used for supplying cleaning liquid and cleaning the separation device and/or the sample basin with the cleaning liquid; and the analysis device is used for analyzing the water sample to be monitored, which is output from the sample basin. The water quality monitoring system has the advantages of high filtering performance, relatively low cost, convenience in assembly, long maintenance period, small assembly space and the like and can be used for monitoring the water sample with a large number of suspended substances.
Description
Technical field
The present invention relates to the water sample monitoring, particularly optimized the water quality monitoring method and the system of preprocessing part.
Background technology
High suspended matter water quality monitoring pretreatment unit is a kind of to the water quality monitoring pretreatment unit that contains a large amount of suspensions in the water samples such as sewage treatment plant's import, sewage pumping station.At present, a kind of widely used water quality monitoring pretreatment system that is applied to this type of operating mode, as shown in Figure 1, said pretreatment system comprises adopts water pump, settling basin, settling basin draining valve, supercharge pump, filtrator, sample pot etc.Detected water sample extracts to settling basin sedimentation certain hour through adopting water pump, extracts through supercharge pump and is delivered to the water sample filtrator, is transported to the usefulness that sample pot supplies instrumental analysis through the water sample that filters.
Such preconditioning technique mainly contains following deficiency:
1, the settling basin volume is bigger, generally has about 50L, and the required erection space of system is very big; Water sample is outer easily to be spattered, and causes system's outside surface corrosion;
2, settling basin and filtrator are separately installed trouble; A large amount of suspensions causes the filtrator easy blocking;
3, water sample is rich in suspension, and sample measurement does not carry out emptying after accomplishing, the long-time use, and corruption produces unusual odor easily;
4, system's difficult clean and maintenance, workload is big.
Summary of the invention
In order to solve the deficiency in the above-mentioned prior art scheme; It is superior to the invention provides a kind of strainability; The water quality monitoring system that is applicable to high suspended matter content water sample that cost is lower, easy for installation, maintenance period is long and installing space is little also provides a kind of water quality monitoring method of this monitoring system of application.
The objective of the invention is to realize through following technical scheme:
A kind of water quality monitoring method, said monitoring method may further comprise the steps:
(A1) water sample to be measured is transported to deposition in the settling basin;
(A2) water sample to be measured of part at least of post precipitation passes through to get in the sample cell behind the tripping device in the said settling basin;
(A3) water sample to be measured in the said sample cell of sampling, thus water sample to be measured analyzed;
(A4) use Clean-liquid to clean said tripping device and/or sample cell.
According to above-mentioned monitoring method, alternatively, said step (A3) further comprises the steps:
(B1) water sample to be measured gets in the water storage cavity in the sample cell, the part water sample overflow in this water storage cavity, and the water sample in the said water storage cavity of taking a sample send downstream analysis.
According to above-mentioned monitoring method, alternatively, said step (A3) further comprises the steps:
(C1) detect the interior liquid level of said water storage cavity, and judge whether to reach requirement;
If judged result is for being then sampling;
If judged result is pointed out and is reported to the police for not.
According to above-mentioned monitoring method, alternatively, said step (A4) further comprises the steps:
(D1) Clean-liquid is reverse cleans said tripping device, and in said settling basin, accumulates;
(D2) extract the interior Clean-liquid of said settling basin, get into and clean said sample cell.
According to above-mentioned monitoring method, preferably, under the swabbing action of pump, the water sample to be measured of part at least in the said settling basin passes through to get in the sample cell behind the tripping device, and makes Clean-liquid clean said tripping device and/or sample cell.
According to above-mentioned monitoring method, preferably, said tripping device adopts filter element.
The object of the invention also is achieved through following technical scheme:
A kind of water quality monitoring system, said monitoring system comprises:
Settling basin, said settling basin is communicated with water source to be measured;
Tripping device, said tripping device is arranged in the said settling basin, is used for separating the solids of the water sample to be measured in the said settling basin;
Aspirator, said aspirator is arranged on the downstream of said tripping device, and input end and output terminal are communicated with settling basin, sample cell respectively;
Sample cell, the output terminal of said sample cell connects analytical equipment;
Cleaning device, said cleaning device are used to provide and utilize Clean-liquid to clean tripping device and/or sample cell;
Analytical equipment, said analytical equipment are used to analyze the water sample to be measured from said sample cell output.
According to above-mentioned monitoring system, preferably, said tripping device adopts filter element.
According to above-mentioned monitoring system, alternatively, said sample cell comprises:
Water storage cavity is provided with intake on the said water storage cavity, and this intake is communicated with said analytical equipment;
Overflow means, said overflow means is arranged in the said sample cell.
According to above-mentioned monitoring system, alternatively, said sample cell further comprises:
Level Detection module, said Level Detection module are used to detect the liquid level in the said water storage cavity, and liquid level information is sent to judge module;
Judge module, said judge module judges whether to satisfy the demand according to the liquid level information that receives;
Alarm module, said alarm module are used in the judged result of said judge module for not the time, and prompting is reported to the police.
According to above-mentioned monitoring system, preferably, said aspirator adopts peristaltic pump.
According to above-mentioned monitoring system, preferably, said cleaning device comprises cleaning valve, cleans and use liquid, the output terminal of said cleaning valve to be communicated with the pipeline between said aspirator and tripping device or the sample cell, and output terminal is communicated with to clean uses liquid.
Compared with prior art, the beneficial effect that has of the present invention is:
1, settling basin and tripping device integrated design, the required erection space of system is very little; The Seal Design of settling basin, water sample can not spill;
2, settling basin and tripping device integrated design, system is easy for installation; The turbulence of water inlet is played good automatic cleaning action to tripping device such as filtrator in the settling basin, and tripping device is difficult for stopping up;
3, the emptying of settling basin and sample cell and cleaning design make settling basin and sample cell continue to be maintained in the clean condition, and be ordorless;
4, the automatic cleaning design of settling basin and sample cell reduces the system maintenance work amount greatly.
Description of drawings
With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art are understood that easily: these accompanying drawings only are used to illustrate technical scheme of the present invention, and are not to be intended to protection scope of the present invention is constituted restriction.Among the figure:
Fig. 1 is the structure diagram according to water quality monitoring system of the prior art;
Fig. 2 is the structure diagram according to the water quality monitoring system of the embodiment of the invention 1;
Fig. 3 is the structure diagram according to the settling basin of the embodiment of the invention 1;
Fig. 4 is the process flow diagram according to the water quality monitoring method of the embodiment of the invention 1;
Fig. 5 is the structure diagram according to the settling basin of the embodiment of the invention 2;
Fig. 6 is the structure diagram according to the sample cell of the embodiment of the invention 2
Fig. 7 is the process flow diagram according to the water quality monitoring method of the embodiment of the invention 2;
Fig. 8 is the another process flow diagram according to the water quality monitoring method of the embodiment of the invention 2.
Embodiment
Fig. 2-8 and following declarative description optional embodiment of the present invention how to implement with instruction those skilled in the art and reproduce the present invention.In order to instruct technical scheme of the present invention, simplified or omitted some conventional aspects.Those skilled in the art should understand that the modification or the replacement that are derived from these embodiments will be within the scope of the invention.Those skilled in the art should understand that following characteristics can make up to form a plurality of modification of the present invention in every way.Thus, the present invention is not limited to following optional embodiment, and is only limited claim and their equivalent.
Embodiment 1:
Fig. 2 has schematically provided the structure diagram of the water quality monitoring system of the embodiment of the invention, and is as shown in Figure 2, and said monitoring system comprises:
Inlet pipeline 1, said inlet pipeline 1 are used for water sample to be measured is delivered in the settling basin 2, and water sample to be measured precipitates in affiliated settling basin, and the part suspension is deposited at the bottom of the pond;
Settling basin 2, Fig. 3 have schematically provided the structure diagram of the settling basin of the embodiment of the invention, and be as shown in Figure 3, has water inlet 25, waste discharge mouth 210 on the said settling basin 2; As preferably, said waste discharge mouth 210 is arranged on the bottom of settling basin 2;
Tripping device 26, said tripping device 26 is arranged in the said settling basin 2, is used for the suspension of the water sample to be measured behind the precipitation separation, and the water sample to be measured after the separation is delivered to sample cell 9 through freeing port 22; Said tripping device can adopt filter element.
Aspirator 7, said aspirator 7 is arranged on the downstream of said tripping device 26, and input end and output terminal are communicated with settling basin 2, sample cell 9 respectively;
Sample cell 9, the output terminal of said sample cell 9 connects the analytical equipment (not shown); Injection port, sample tap, waste discharge mouth are set on the said sample cell, and said sample tap is communicated with analytical equipment; As preferably, this waste discharge mouth is arranged on the bottom of sample cell 9;
Cleaning device, said cleaning device are used to provide and utilize Clean-liquid (like clean water) to clean tripping device and/or sample cell; Preferably, said cleaning device comprises cleaning valve 4, and clean water gets into the pipeline between aspirator 7 and the settling basin 2 (or sample cell 9) through cleaning valve, thereby utilizes clean water to clean said tripping device 26 and/or sample cell 9;
Analytical equipment, said analytical equipment are used to analyze the water sample to be measured from said sample cell output.Said analytical equipment is the state of the art, repeats no more at this.
Fig. 4 has schematically provided the process flow diagram of the water quality monitoring method of the embodiment of the invention, also is the course of work of above-mentioned monitoring system, and is as shown in Figure 4, and said monitoring method may further comprise the steps:
(A1) after detected water sample gets into settling basin through inlet pipeline, at first carry out preliminary sedimentation, this settling time can rationally be regulated according to the actual water sample situation;
(A2) under the effect of aspirator, the water sample to be measured of part at least of post precipitation passes through to get in the sample cell behind the tripping device in the said settling basin, and part water sample to be measured is drained through the waste discharge mouth;
(A3) water sample to be measured in the said sample cell of sampling, thus water sample to be measured analyzed;
(A4) Clean-liquid such as the clean water of utilizing cleaning device to provide are cleaned said tripping device and/or sample cell, and the water after the cleaning is drained through the waste discharge mouth on settling basin and/or the sample cell, thereby keep the cleaning of monitoring system.
Embodiment 2:
According to the monitoring system and the application examples of method in sewage treatment plant of the embodiment of the invention 1, specifically be the water sample that is used to detect sewage inflow point.In this application examples, aspirator adopts peristaltic pump.
Fig. 5 has schematically provided the structure diagram of the settling basin in should use-case, and as shown in Figure 5, settling basin is closed design, on capping 21 and sealing gasket 24, is provided with blow vent 23, freeing port 22.Tripping device adopts filter type, is arranged on the bottom of capping 21 and is in the settling basin, specifically comprises filter screen 28, gland 27, gland nut 29, and inside has the water sample passage, and the water sample after the filtration is discharged into downstream through freeing port 22.Water inlet 25, overflow vent 210 are arranged on the sidewall of settling basin, and waste discharge mouth 211 is arranged on the bottom.
Fig. 6 has schematically provided the structure diagram of the sample cell in should use-case; As shown in Figure 6; Said sample cell 9 adopts closed design, is provided with blow vent 91, specifically comprises water storage cavity, waste discharge chamber, is arranged on Level Detection module 95, judge module (not shown) and alarm module (not shown) in the water storage cavity; The bottom of said water storage cavity is provided with water inlet 97, and sidepiece is provided with sample tap 96.Bottom, said waste discharge chamber is provided with waste discharge mouth 98, is provided with the overflow weir 94 of inclination between waste discharge chamber and the water storage cavity, and the water sample overflow of being convenient in the water storage cavity is advanced in the waste discharge chamber.Said Level Detection module 95 is used to detect the liquid level in the said water storage cavity; And liquid level information is sent to judge module; Said judge module judges whether to satisfy the demand according to the liquid level information that receives, and said alarm module is used in the judged result of said judge module for not the time, and prompting is reported to the police.
Fig. 7 has schematically provided the process flow diagram of water quality monitoring method that should use-case, and promptly the workflow of above-mentioned monitoring system is as shown in Figure 7, said method comprising the steps of:
(A1) after detected water sample gets into settling basin through inlet pipeline, at first carry out preliminary sedimentation, this settling time can rationally be regulated according to the actual water sample situation;
(A2) under the effect of peristaltic pump, the water sample to be measured of part at least of post precipitation passes through to get in the sample cell behind the tripping device in the said settling basin, and part water sample to be measured is drained through the waste discharge mouth;
(B1) water sample to be measured gets in the water storage cavity in the sample cell, the part water sample overflow in this water storage cavity,
(C1) detect the interior liquid level of said water storage cavity, and judge whether to reach requirement;
If judged result is then taken a sample for being, send downstream analysis;
If judged result is pointed out and reported to the police for not, the engineering staff goes to safeguard monitoring system according to warning;
(D1) cleaning device provides the reverse cleaning of clean water said tripping device, and in said settling basin, accumulates;
(D2) clean water in the said settling basin of peristaltic pump pumps gets into and cleans said sample cell;
The peristaltic pump counter-rotating is withdrawn into the water sample in the water storage cavity in the settling basin again, oppositely cleans filter screen once more;
Above-mentioned steps (D1), (D2) repeatedly drain through the waste discharge mouth on settling basin and/or the sample cell at last back and forth, thereby keep the cleaning of monitoring system.
Fig. 8 has schematically provided the process flow diagram of another water quality monitoring method that should use-case, and promptly the workflow of above-mentioned monitoring system is as shown in Figure 8, said method comprising the steps of:
(A1) after detected water sample gets into settling basin through inlet pipeline, at first carry out preliminary sedimentation, this settling time can rationally be regulated according to the actual water sample situation;
(A2) under the effect of peristaltic pump, the water sample to be measured of part at least of post precipitation passes through to get in the sample cell behind the tripping device in the said settling basin, and part water sample to be measured is drained through the waste discharge mouth;
(B1) water sample to be measured gets in the water storage cavity in the sample cell, the part water sample overflow in this water storage cavity,
(C1) in detection time of setting in the T, detect the liquid level in the said water storage cavity, and judge whether to reach requirement;
If judged result is for being, peristaltic pump stops extraction, takes a sample and send downstream analysis;
If judged result is pointed out and reported to the police for not, the engineering staff goes to safeguard monitoring system according to warning;
(D1) cleaning device provides the reverse cleaning of clean water said tripping device, and in said settling basin, accumulates;
(D2) clean water in the said settling basin of peristaltic pump pumps gets into and cleans said sample cell;
In detection time of setting in the T, detect the liquid level in the said water storage cavity, and judge whether to reach requirement;
If judged result, then stops extraction for being;
If judged result is pointed out and reported to the police for not, the engineering staff goes to safeguard monitoring system according to warning;
The peristaltic pump counter-rotating is withdrawn into the water sample in the water storage cavity in the settling basin again, oppositely cleans filter screen once more;
Repeat above-mentioned steps (D1), (D2) several times, drain through the waste discharge mouth on settling basin and/or the sample cell at last, thus the cleaning of maintenance monitoring system.
The benefit that reaches according to the embodiment of the invention is: the integrated closure designs of settling basin and tripping device, and erection space is very little, and is easy for installation, and water sample can not spill; The turbulence of water inlet is played good automatic cleaning action to screen pack in the settling basin, is difficult for stopping up; The automatic cleaning design of settling basin and sample cell makes settling basin and sample cell continue to be maintained in the clean condition, and is ordorless, also reduced the system maintenance work amount.
Claims (12)
1. water quality monitoring method, said monitoring method may further comprise the steps:
(A1) water sample to be measured is transported to deposition in the settling basin;
(A2) water sample to be measured of part at least of post precipitation passes through to get in the sample cell behind the tripping device in the said settling basin;
(A3) water sample to be measured in the said sample cell of sampling, thus water sample to be measured analyzed;
(A4) use Clean-liquid to clean said tripping device and/or sample cell.
2. monitoring method according to claim 1 is characterized in that: said step (A3) further comprises the steps:
(B1) water sample to be measured gets in the water storage cavity in the sample cell, the part water sample overflow in this water storage cavity, and the water sample in the said water storage cavity of taking a sample send downstream analysis.
3. monitoring method according to claim 2 is characterized in that: said step (A3) further comprises the steps:
(C1) detect the interior liquid level of said water storage cavity, and judge whether to reach requirement;
If judged result is for being then sampling;
If judged result is pointed out and is reported to the police for not.
4. monitoring method according to claim 1 is characterized in that: said step (A4) further comprises the steps:
(D1) Clean-liquid is reverse cleans said tripping device, and in said settling basin, accumulates;
(D2) extract the interior Clean-liquid of said settling basin, get into and clean said sample cell.
5. monitoring method according to claim 1; It is characterized in that: under the swabbing action of pump; The water sample to be measured of part at least in the said settling basin passes through to get in the sample cell behind the tripping device, and makes Clean-liquid clean said tripping device and/or sample cell.
6. monitoring method according to claim 1 is characterized in that: said tripping device adopts filter element.
7. water quality monitoring system, said monitoring system comprises:
Settling basin, said settling basin is communicated with water source to be measured;
Tripping device, said tripping device is arranged in the said settling basin, is used for separating the solids of the water sample to be measured in the said settling basin;
Aspirator, said aspirator is arranged on the downstream of said tripping device, and input end and output terminal are communicated with settling basin, sample cell respectively;
Sample cell, the output terminal of said sample cell connects analytical equipment;
Cleaning device, said cleaning device are used to provide and utilize Clean-liquid to clean tripping device and/or sample cell;
Analytical equipment, said analytical equipment are used to analyze the water sample to be measured from said sample cell output.
8. monitoring system according to claim 7 is characterized in that: said tripping device adopts filter element.
9. monitoring system according to claim 7 is characterized in that: said sample cell comprises:
Water storage cavity is provided with intake on the said water storage cavity, and this intake is communicated with said analytical equipment;
Overflow means, said overflow means is arranged in the said sample cell.
10. monitoring system according to claim 9 is characterized in that: said sample cell further comprises:
Level Detection module, said Level Detection module are used to detect the liquid level in the said water storage cavity, and liquid level information is sent to judge module;
Judge module, said judge module judges whether to satisfy the demand according to the liquid level information that receives;
Alarm module, said alarm module are used in the judged result of said judge module for not the time, and prompting is reported to the police.
11. monitoring system according to claim 7 is characterized in that: said aspirator adopts peristaltic pump.
12. monitoring system according to claim 7; It is characterized in that: said cleaning device comprises cleaning valve, cleans and use liquid; The output terminal of said cleaning valve is communicated with the pipeline between said aspirator and tripping device or the sample cell, and output terminal is communicated with to clean uses liquid.
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| CN2012102357457A CN102735511A (en) | 2012-06-29 | 2012-06-29 | Water quality monitoring method and system |
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Cited By (6)
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| CN103364486A (en) * | 2013-07-17 | 2013-10-23 | 清华大学 | Ultrasonic concentration measuring device able to realize large-scale concentration measurement |
| CN103969388A (en) * | 2014-05-13 | 2014-08-06 | 力合科技（湖南）股份有限公司 | Online perchlorate monitoring system |
| CN105606432A (en) * | 2016-03-17 | 2016-05-25 | 中国石油大学(北京) | Pretreatment device for organic carbon content analysis |
| CN106248438A (en) * | 2016-08-26 | 2016-12-21 | 温州统利机械科技有限公司 | The sampling detecting device of sewage treatment control system |
| CN107748174A (en) * | 2017-11-25 | 2018-03-02 | 王会会 | A kind of water quality detecting device |
| CN109060419A (en) * | 2018-06-22 | 2018-12-21 | 深圳市宇驰检测技术股份有限公司 | Water sample acquisition device and method |
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| CN107748174A (en) * | 2017-11-25 | 2018-03-02 | 王会会 | A kind of water quality detecting device |
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Application publication date: 20121017 |