CN217638293U

CN217638293U - Water quality monitoring dilutes and adds mark device based on photoelectric sensor

Info

Publication number: CN217638293U
Application number: CN202123146341.4U
Authority: CN
Inventors: 褚海林; 兰恒科; 崔小明; 李国强; 李宝栋; 谢宏; 刘彬
Original assignee: Sichuan Jiuhuan Environmental Technology Co ltd
Current assignee: Sichuan Jiuhuan Environmental Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-10-21
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to a quality of water on-line automatic measurement technical field discloses a water quality monitoring dilutes and adds mark device based on photoelectric sensor, including the sample cell, both ends difference equidistance installation is fixed with a plurality of first photoelectric sensor and second photoelectric sensor about the sample cell, the one end of feed liquor pipe is communicated to sample cell bottom, the other end intercommunication of feed liquor pipe has the micropump, just the feed liquor end of micropump bottom is through pipeline intercommunication liquid marking bottle, the left side bottom intercommunication of sample cell has the one end of drain pipe, the other end intercommunication of drain pipe has the sampling valve. The utility model selects to feed pure water or water sample through the six-way valve; the volume of the constant volume can be selected, and whether liquid exists or not can be judged through the photoelectric sensor; air can be pumped in through the peristaltic pump for air stirring, so that the uniformity of substances to be detected in the sample cell is ensured; the liquid in the sample cell can be subjected to waste liquid separation; and optionally adding a cleaning agent sample pool for cleaning.

Description

Water quality monitoring dilutes and adds mark device based on photoelectric sensor

Technical Field

The utility model relates to a quality of water on-line automatic measurement technical field specifically is a water quality monitoring dilutes and adds mark device based on photoelectric sensor.

Background

In the automatic water quality monitoring, in order to ensure that online monitoring data is stable and accurate for a long time, quality control is required, the testing accuracy of an instrument is checked, the error of the data is ensured to be within an allowable range, and the checking is mainly carried out by regularly checking known concentration standard liquid and adding standard to recover a water sample. The standard liquid check with known concentration can reflect whether the basic state and the standard curve of the online monitor are normal or not. The water body background is considered in the standard adding recovery, namely whether the water body has interference is judged through whether the standard adding recovery is normal or not, and whether the method used by the online monitor is suitable for the detected water body or not is further reflected.

At present, in the field of online monitoring of water quality, a quality control instrument or a quality control system with added standard recovery is widely applied. However, the existing labeling device has the following problems: the first is that only a certain specific function can be realized, such as only water sample adding or only a certain concentration standard solution can be provided; secondly, the constant volume is usually fixed and cannot be adjusted according to the requirement of the on-line monitor, if the monitor needs fewer samples for one-time measurement, the waste is caused if a large amount of samples are provided, and if the monitor needs more samples for one-time measurement, the test cannot be performed if the samples are not provided enough; thirdly, the waste liquid separation function is not usually realized, and the liquid or water sample after the standard addition and the cleaning wastewater are not separately discharged; the fourth is the timing self-cleaning who does not consider the sample cell, because the sample cell contacts the water sample often, the pollutant in the water sample adheres to the sample cell inner wall and will cause subsequent pollution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a water quality monitoring dilutes and adds mark device based on photoelectric sensor, has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a water quality monitoring dilutes and adds mark device based on photoelectric sensor, includes the sample cell, both ends are the equidistance installation respectively about the sample cell left and right sides and are fixed with a plurality of first photoelectric sensor and second photoelectric sensor, the one end of sample cell bottom intercommunication feed liquor pipe, the other end intercommunication of feed liquor pipe has the micropump, just the feed liquor end of micropump bottom is through pipeline intercommunication liquid marking bottle, the left side bottom intercommunication of sample cell has the one end of drain pipe, the other end intercommunication of drain pipe has the sampling valve, the peristaltic pump is installed through pipeline intercommunication in sample cell bottom, peristaltic pump bottom right side intercommunication has the fluid-discharge tube, fluid-discharge tube bottom intercommunication has the six-way valve, sample cell top intercommunication has the air hose.

As a preferred embodiment of the present invention, the material of the sample cell is plastic or glass, such as transparent material such as organic glass; the sample cell is rectangular, and a photoelectric sensor is arranged on the side surface of the sample cell; the bottom of the sample pool is arc-shaped.

As a preferred embodiment of the utility model, the air pipe, the water sample pipe, the pure water pipe, the waste liquid pipe and the standby pipe are respectively connected from top to bottom on the left side of the six-way valve.

As an optimal implementation mode of the utility model, peristaltic pump, six-way valve and photoelectric sensor ally oneself with to use and can carry out the constant volume, and peristaltic pump and six-way valve ally oneself with to use and to realize water sample, pure water suction or discharge sample cell, also can carry out the height liquid level constant volume according to the photoelectric sensor position.

As a preferred embodiment of the utility model, the peristaltic pump and the six-way valve are used together to carry out the waste liquid separation.

As a preferred embodiment of the utility model, the peristaltic pump and the six-way valve are combined to add a specific cleaning agent.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model has simple structure and convenient use, and discharges pure water or water sample higher than the photoelectric sensor through the peristaltic pump, thereby the volume with constant volume can be selected from two grades; through the cooperation of the peristaltic pump and the six-way valve, pure water or a water sample can be selectively pumped into the sample pool, so that the functions of diluting the standard solution and adding the standard to the water sample can be realized; through the cooperation of the peristaltic pump and the six-way valve, the liquid in the sample cell can be selectively discharged into a waste water pipe or a waste liquid pipe, so that the volume of the waste liquid is reduced, and the maintenance cost is reduced; through the cooperation of peristaltic pump and six-way valve, the optional pump goes into specific sanitizer to the sample cell, combines the stirring of air bubbling for its clean effectual, guarantee that the sample cell is clean for a long time, can not cause because of the deposit and adsorb the material that awaits measuring.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

figure 1 is the utility model relates to a water quality monitoring dilutes and adds overall structure schematic diagram of mark device based on photoelectric sensor.

In the figure: 1. a sample cell; 2. a first photosensor; 3. a second photosensor; 4. a sample inlet pipe; 5. a micro pump; 6. a standard solution bottle; 7. a sampling tube; 8. a sampling valve; 9. a peristaltic pump; 10. a six-way valve; 11. an air tube; 12. a liquid discharge pipe; 13. an air tube; 14. a water sample pipe; 15. a pure water pipe; 16. A waste pipe; 17. a waste liquid pipe; 18. and (5) a spare pipe.

Detailed Description

Referring to fig. 1, the present invention provides a technical solution: a water quality monitoring diluting and labeling device based on a photoelectric sensor comprises a sample cell 1, wherein a sample inlet pipe 4 communicated with a micro pump, a sampling pipe 7 of a sampling valve 8 and a liquid discharge pipe 12 with a peristaltic pump 9 and a six-way valve 10 are arranged on the outer wall of the sample cell; meanwhile, the high-low first photoelectric sensor 2 and the second photoelectric sensor 3 are arranged on two sides of the sample cell 1 and are horizontally aligned; the top of the sample cell 1 is communicated with an air pipe 11.

In the utility model, the sample cell 1 is made of plastic or glass, such as transparent and inert materials like organic glass, which can ensure the normal operation of the photoelectric sensor and can not affect the water quality of the water sample, and the sample cell 1 is rectangular and has a circular arc bottom, thereby facilitating the discharge of impurities along with the water sample through the liquid discharge pipe 12 and further reducing the residue; the high-liquid-level first photoelectric sensor 2, the low-liquid-level second photoelectric sensor 3 respectively determine the volume-fixed volume from the height of the bottom of the sample pool 1 and the sectional area of the sample pool 1, the peristaltic pump 9 pumps pure water or a water sample into the sample pool 1 and enables the pure water or the water sample to be slightly higher than the first photoelectric sensor 2 and the second photoelectric sensor 3, then the peristaltic pump 9 slowly discharges the liquid in the sample pool 1 reversely until the liquid level in the sample pool 1 drops to the position of the photoelectric sensors, the first photoelectric sensor 2 and the second photoelectric sensor 3 detect the change of optical signals caused by the concave liquid level of the liquid, the liquid discharge action of the peristaltic pump 9 is stopped, namely the volume-fixed volume is completed, and the residual pure water or the water sample is the volume-fixed volume when the standard liquid is diluted or the standard adding recovery test is carried out. The micro pump 5 can pump the standard liquid 6 in the standard liquid bottle into the sample pool 1 in a pulse mode, when the sample pool 1 is pure water, diluted standard liquid can be obtained, when the sample pool 1 is water sample, the sample after standard addition can be obtained, and because the pulse number of the micro pump 5 can be set, the standard liquid or the standard addition sample with different concentrations and series gradients can be obtained. The peristaltic pump 9 can rotate forwards or reversely, and can be used together with the six-way valve 10 to realize the addition or discharge of a water sample, pure water and a standby cleaning agent into the sample pool 1, also can pump air into the sample pool 1 to stir liquid in the sample pool 1, and can selectively discharge residual liquid in the sample pool 1 into the waste water pipe 16 or the waste water pipe 17 to realize waste liquid separation. The sampling valve 8 can supply the diluted or labeled liquid in the sample cell 1 to the online monitoring instrument at a specified time, or can directly supply the water sample to the online monitoring instrument without passing through the sample cell 1.

The device needs 220V power supply to be directly connected with commercial power when in work, and related instruments and electronic equipment mentioned in the device are all existing products, so that the related specific models are not specified.

When the device works, the dilution of standard liquid can be divided into four steps: injecting pure water in the first step: pure water enters the interior of the sample tank 1 through the pure water inlet pipe 15, the six-way valve 10 and the peristaltic pump 9, the six-way valve 10 is switched to the pure water pipe 15, the peristaltic pump 9 is started to rotate forwards, when the pure water enters the sample tank 1 and the liquid level rises to the required liquid level, the first photoelectric sensor 2 and the second photoelectric sensor 3 send liquid level signals, and the peristaltic pump 9 and the six-way valve 10 are stopped filling the pure water after a short time. And a second step of constant volume: the six-way valve 10 is switched to a waste water pipe 16, the peristaltic pump 9 slowly rotates reversely, liquid in the sample pool 1 is reversely discharged until the liquid level in the sample pool 1 drops to the positions of the first photoelectric sensor 2 and the second photoelectric sensor 3, the first photoelectric sensor 2 and the second photoelectric sensor 3 send liquid level signals, liquid discharging action of the peristaltic pump 9 is immediately stopped, and constant volume is completed. Thirdly, adding standard solution for dilution and stirring: and starting the micro pump 5, pumping quantitative standard liquid 6 into the sample pool 1 through the liquid inlet pipe 4, stopping the micro pump 5, switching the six-way valve 10 to the air pipe 13, positively rotating the peristaltic pump 9, pumping air into the sample pool 1, stirring, uniformly stirring, and finishing dilution. The water quality on-line monitor can sample from the sampling pipe 7 through the sampling valve 8 for standard solution analysis, and calculate indication error or accuracy; and fourthly, cleaning: after the diluted standard liquid is taken out by the instrument, the six-way valve 10 is switched to the waste liquid pipe 17, the peristaltic pump 9 is started to rotate reversely, the residual standard liquid is discharged from the waste liquid pipe 17, the peristaltic pump 6 is closed, then the six-way valve 10 is switched to the pure water pipe 15, the peristaltic pump 9 is started to rotate forward, pure water is pumped into the cleaning sample pool 1, after the cleaning is carried out for a period of time, the six-way valve 10 is switched to the waste water pipe 16, the peristaltic pump 9 is started to rotate reversely, the cleaning water is discharged, the six-way valve 10 is closed, the peristaltic pump 9 is closed, and the whole process is ended.

When the device works, the water sample labeling can be divided into four steps: a first step of water sample test: a water sample enters the interior of the sample pool 1 through the water inlet sample pipe 14, the six-way valve 10 and the peristaltic pump 9, the six-way valve 10 is switched to the water sample pipe 14, the peristaltic pump 9 is started to rotate forwards, when the water sample enters the sample pool 1 and the liquid level rises to a required liquid level, the first photoelectric sensor 2 and the second photoelectric sensor 3 send liquid level signals, and the peristaltic pump 9 and the six-way valve 10 are stopped filling the water sample after continuing for a period of time. The online water quality monitor samples from a sampling pipe 7 through a sampling valve 8 to analyze a water sample; and a second step of constant volume: the six-way valve 10 is switched to a waste water pipe 16, the peristaltic pump 9 slowly rotates reversely, liquid in the sample pool 1 is reversely discharged until the liquid level in the sample pool 1 drops to the positions of the first photoelectric sensor 2 and the second photoelectric sensor 3, the first photoelectric sensor 2 and the second photoelectric sensor 3 send liquid level signals, the liquid discharging action of the peristaltic pump 9 is immediately stopped, and the constant volume is completed. Third step, adding mark and stirring: and (3) starting the micro pump 5, pumping quantitative standard liquid into the sample pool 1 through the liquid inlet pipe 4, stopping the micro pump 5, switching the six-way valve 10 to the air pipe 13, rotating the peristaltic pump 9 forwards, pumping air into the sample pool 1, stirring uniformly, and finishing the standard addition. The water quality on-line monitor can sample from the sampling pipe 7 through the sampling valve 8 to perform water sample analysis after the adding of the standard, and calculate the adding of the standard recovery rate by combining the two analysis results; and a fourth step of cleaning: after the instrument takes the water sample after adding the standard, the six-way valve 10 is switched to the waste liquid pipe 17, the peristaltic pump 9 is started to rotate reversely, the residual water sample after adding the standard is discharged from the waste liquid pipe 17, the peristaltic pump 6 is closed, then the six-way valve 10 is switched to the pure water pipe 15, the peristaltic pump 9 is started to rotate forward, pure water is pumped into the cleaning sample pool 1, after cleaning for a period of time, the six-way valve 10 is switched to the waste water pipe 16, the peristaltic pump 9 is started to rotate reversely, cleaning water is discharged, the six-way valve 10 is closed, the peristaltic pump 9 is closed, and the whole process is finished. If a cleaning agent is required to be added, the six-way valve 10 can be switched to the standby pipe 18 through the standby pipe 18 in advance, the peristaltic pump 9 rotates forwards, and a certain amount of cleaning agent is pumped into the sample cell 1.

In conclusion, the water quality monitoring, diluting and adding device based on the photoelectric sensor discharges pure water or water samples higher than the photoelectric sensor through the peristaltic pump 9, so that the two high and low gears of the constant volume can be selected; through the cooperation of the peristaltic pump 9 and the six-way valve 10, pure water or a water sample can be selectively pumped into the sample pool 1, so that the functions of diluting a standard solution and adding a water sample into the standard solution can be realized; through the cooperation of the peristaltic pump 9 and the six-way valve 10, the liquid in the sample cell 1 can be selectively discharged into a waste water pipe 16 or a waste liquid pipe 17, so that the volume of the waste liquid is reduced, and the maintenance cost is reduced; through the cooperation of peristaltic pump 9 and six-way valve 10, specific sanitizer is pumped into to the optional sample cell 1, combines the air tympanic bulla stirring for its is clean effectual, guarantees that sample cell 1 is clean for a long time, can not cause because of the deposit to adsorb the material that awaits measuring.

The utility model relates to a water quality monitoring, diluting and labeling device based on a photoelectric sensor, which comprises a sample pool 1; 2. a first photosensor; 3. a second photosensor; 4. a sample inlet pipe; 5. a micro pump; 6. a standard solution bottle; 7. a sampling tube; 8. a sampling valve; 9. a peristaltic pump; 10. a six-way valve; 11. an air tube; 12. a liquid discharge pipe; 13. an air tube; 14. a water sample pipe; 15. a pure water pipe; 16. a waste pipe; 17. a waste liquid pipe; 18. the spare tube and the components are all common standard components or components known to those skilled in the art, and the structure and the principle of the spare tube and the components are known to those skilled in the art through technical manuals or through routine experimental methods.

Claims

1. The utility model provides a water quality monitoring dilutes and adds mark device based on photoelectric sensor, includes sample cell (1), its characterized in that: sample cell (1) left and right sides both ends are the equidistance installation respectively and are fixed with a plurality of first photoelectric sensor (2) and second photoelectric sensor (3), the one end of sample cell (1) bottom intercommunication feed liquor pipe (4), the other end intercommunication of feed liquor pipe (4) has micropump (5), just the feed liquor end of micropump (5) bottom is through pipeline intercommunication liquid marking bottle (6), the left side bottom intercommunication of sample cell (1) has the one end of drain pipe (7), the other end intercommunication of drain pipe (7) has sampling valve (8), peristaltic pump (9) are installed through the pipeline intercommunication in sample cell (1) bottom, peristaltic pump (9) bottom right side intercommunication has fluid-discharge tube (12), fluid-discharge tube (12) bottom intercommunication has six-way valve (10), sample cell (1) top intercommunication has air hose (13).

2. The water quality monitoring diluting and labeling device based on the photoelectric sensor as recited in claim 1, wherein: the appearance of sample cell (1) is transparent organic glass square, and the bottom is arc, is used for making things convenient for discharge of fluid-discharge tube (12) to the inside liquid of sample cell (1).

3. The water quality monitoring diluting and labeling device based on the photoelectric sensor as claimed in claim 1, wherein: the level opposition of high liquid level and low liquid level first photoelectric sensor (2) and second photoelectric sensor (3), can detect the existence of the inside liquid of sample cell (1) to carry out the accuracy to the liquid level of the inside liquid of sample cell (1) and judge, thereby confirm the liquid volume, and select to use the height liquid level to change the constant volume.

4. The water quality monitoring diluting and labeling device based on the photoelectric sensor as recited in claim 1, wherein: the left side of the six-way valve (10) is respectively connected with an air pipe (13), a water sample pipe (14), a pure water pipe (15), a waste water pipe (16), a waste liquid pipe (17) and a standby pipe (18) from top to bottom.

5. The water quality monitoring diluting and labeling device based on the photoelectric sensor as claimed in claim 4, wherein: when the peristaltic pump (9) rotates forwards and the air pipe (13) is opened, the liquid in the sample pool (1) can be stirred through the air bubbles through the air pipe (13).

6. The water quality monitoring diluting and labeling device based on the photoelectric sensor as claimed in claim 4, wherein: when the peristaltic pump (9) rotates forwards and the water sample pipe (14) is opened, a water sample can be pumped into the sample pool (1) through the water sample pipe (14).

7. The water quality monitoring diluting and labeling device based on the photoelectric sensor as claimed in claim 4, wherein: when the peristaltic pump (9) is rotated forward and the pure water pipe (15) is opened, pure water can be pumped into the sample cell (1) through the pure water pipe (15).

8. The water quality monitoring diluting and labeling device based on the photoelectric sensor as claimed in claim 4, wherein: when the peristaltic pump (9) is reversed and the waste (16) is opened, liquid can be drained from the sample cell (1) via the waste (16).

9. The water quality monitoring diluting and labeling device based on the photoelectric sensor as claimed in claim 4, wherein: when the peristaltic pump (9) is reversed and the waste tube (17) is opened, liquid can be drained from the sample cell (1) via the waste tube (17), the backup tube (18) being expandable for cleaning agent.