CN113029697A

CN113029697A - Automatic sampling system for river polluted water

Info

Publication number: CN113029697A
Application number: CN202110505442.1A
Authority: CN
Inventors: 孙波
Original assignee: Hangzhou Hucao Environmental Protection Technology Co ltd
Current assignee: Loyal Env Tech Instrument Jiangsu Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-06-25
Anticipated expiration: 2041-05-10
Also published as: CN113029697B

Abstract

The invention belongs to the field of sewage sampling, and relates to an automatic sampling system for river polluted water. The self-cleaning filter cartridge is arranged at a river channel needing to be detected and sampled, can filter colloid pollutants and other impurities floating in the river, and can self-clean the filter cartridge to avoid blocking a sampling port.

Description

Automatic sampling system for river polluted water

Technical Field

The invention belongs to the field of sewage sampling, and particularly relates to an automatic sampling system for river polluted water.

Background

As is well known, in order to ensure that the ecological environment is not destroyed, the water flow in the river channel needs to be sampled and detected to avoid sewage discharge, pollutants contained in industrial sewage are different due to different types of factories, even in the same type of factories, the pollutants in the sewage have larger difference due to different production processes, and therefore the industrial sewage needs to be classified and detected, so that the sewage can be purified and filtered in different modes, after the existing sewage detection device is used for a long time, the detection value of the detection device is deviated due to the fact that impurities or reaction residues in the wastewater adhere to the inside of the detection device, so that the precision of the detection result of the detection device is reduced, and meanwhile, the sampling of different water layers in the river channel is easy to cause river water mixing, so that the sample is inaccurate, meanwhile, the existing sampling device is difficult to clean the sampling device, and the last sampling sample remains in the device body, affecting the result of the next sample.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides an automatic sampling system for river polluted water.

The purpose of the invention can be realized by the following technical scheme: the utility model provides an automatic sampling system of river contaminated water, includes the casing, the fixed dead lever that is equipped with on the lateral wall on the casing, go up the fixed sampling chamber that is equipped with of dead lever downside, be equipped with the sample chamber in the sampling chamber, the sample intracavity is equipped with sample collection device, and sample collection device is used for taking a sample the collection with the river that is detected, be equipped with high adjusting device on the lateral wall of sampling chamber left side, it is equipped with the filter cylinder axle to rotate on the lateral wall of sampling chamber downside, the epaxial fixed a section of thick bamboo that is equipped with of filter cylinder, be equipped with a plurality of filtration mouth on straining, strain and be equipped with filter equipment on the section of thick bamboo, filter equipment is used for filtering the colloid pollutant of river aquatic, avoids blockking up the sample mouth, be equipped with filter screen cleaning device on the lateral.

Preferably, the filter cylinder shaft extends downwards to the outer side of the shell, the filtering device comprises an upper bevel gear fixedly arranged at the lower end of the filter cylinder shaft, a lower fixing rod is fixedly arranged on the lower side wall of the sampling chamber, an annular groove sliding block is fixedly arranged on the lower fixing rod, an annular groove is fixedly arranged on the lower side wall of the filter cylinder, the annular groove sliding block slides in the annular groove, an impeller shaft is rotatably arranged on the lower side of the lower fixing rod, an impeller is fixedly arranged at the left end of the impeller shaft, a lower bevel gear is fixedly arranged at the right end of the impeller shaft, and the lower bevel gear is meshed with the upper bevel gear.

Preferably, height adjusting device is including fixed the setting sample head spout on the sampling chamber left side wall, the sample head spout slides from top to bottom and is equipped with automatically controlled slider, the fixed feed liquor pipe that is equipped with on the automatically controlled slider, the feed liquor pipe is the L type, it is equipped with the jam plate axle to rotate on the feed liquor pipe left side wall, the epaxial fixed jam plate that is equipped with of jam plate, the jam plate is used for blockking up the vertical section of feed liquor pipe, feed liquor pipe left side is equipped with the check valve entry, the lateral wall is equipped with the check valve entry on the feed liquor pipe.

Preferably, the sample collection device is including fixing automatically controlled spout on the lateral wall on the sample chamber, it is equipped with the reciprocating lever to slide from top to bottom in the automatically controlled spout, on the reciprocating lever lateral wall with be connected with the reciprocating lever spring on the automatically controlled spout between the lateral wall, the fixed piston chamber that is equipped with on the lateral wall behind the sample chamber, it is equipped with the piston to slide from top to bottom in the piston chamber, the piston with reciprocating lever downside wall fixed connection, under the piston left side wall with be connected with the feed liquor check valve pipe between the feed liquor pipe right-hand member.

Preferably, a motor is fixedly arranged on the lower side wall of the sampling cavity, a turntable shaft is arranged on the output end of the motor, a left driving wheel is fixedly arranged on the lower side of the turntable shaft, a turntable is fixedly arranged at the upper end of the turntable shaft, four sampling and collecting chambers are annularly and fixedly arranged on the turntable, a sealing block is rotatably arranged on each sampling and collecting chamber, a right rotating shaft is rotatably arranged on the lower right side wall of the sampling cavity, a right driving wheel is fixedly arranged at the lower end of the right rotating shaft, a driving belt is connected between the right driving wheel and the left driving wheel, a sleeve is fixedly arranged at the upper end of the right rotating shaft, a corrugated groove is fixedly arranged on the sleeve, a moving rod is slidably arranged on the corrugated groove, a liquid outlet block is fixedly arranged at the left end of the moving rod, a liquid outlet check valve pipe is connected between the liquid outlet block and the lower side wall of the piston cavity, a pipeline cleaning device is arranged, the problem of inaccurate sampling result caused by the existence of residual samples is avoided.

Preferably, the pipeline cleaning device comprises a cleaning water chamber fixed on the upper left side wall of the sampling cavity, a hose is connected between the cleaning water chamber and the upper side wall of the liquid inlet pipe, a liquid outlet is fixedly formed in the lower side wall of the sampling cavity, four rotary disc holes are annularly and fixedly formed in the rotary disc, and along with rotation of the rotary disc, the leftmost rotary disc hole is just opposite to the liquid outlet.

Preferably, the filter screen cleaning device comprises a pump fixed on the lower side wall of the shell, an air outlet is fixedly arranged on the lower right side wall of the sampling chamber, the air outlet is communicated with an air outlet pipe of the pump, and the pump is communicated with a liquid inlet pipe through water flow on the right side between the filter cylinder and the sampling chamber.

The device is fixed at a river to be sampled, the river impacts the impeller to drive the impeller shaft to rotate under the action of the shell, the lower bevel gear rotates to be meshed with the upper bevel gear to rotate, the filter cylinder shaft is driven to rotate, the filter cylinder rotates to block and filter colloid pollutants drifting in the river, the colloid filter is prevented from blocking a sampling opening, the result of detecting chemical sample data in the river is more accurate, the blocking effect is enhanced along with the rotation of the filter cylinder, and the normal water flow is guaranteed.

The filtered colloid pollutants are hung on the filter cylinder and gradually accumulated, the pump is started at regular time, the filtered river water is pumped into the pump by the pump and is pumped out through the air outlet, the filter cylinder on the right side is impacted and rotated, the colloid pollutants hung on the filter opening are washed down, a large amount of bubbles are generated at the same time, the bubbles float and break, the colloid pollutants are shattered into small blocks, the cleaning effect is improved, and the colloid pollutants are prevented from being hung on the filter cylinder and being difficult to take down.

When river water is required to be sampled, the reciprocating rod is started to move upwards in the electric control chute, the piston moves upwards in the piston cavity, the river water is sucked through an inlet on the left side of the liquid inlet pipe on the electric control sliding block, meanwhile, the motor is started to drive the rotary disc to rotate, the rotary disc rotates, a sampling collection chamber rotates to the left side, the left driving wheel drives the right driving wheel to rotate, the right rotating shaft rotates to drive the sleeve to rotate, the moving rod moves downwards, the liquid outlet block is inserted into the left sampling collection chamber, the reciprocating rod is started to move downwards in the electric control chute, the piston is driven to move downwards in the piston cavity, and the pumped river water is discharged into the left sampling collection chamber to be collected.

Continue starter motor, it continues the rotation to drive the carousel axle, make the carousel rotatory, under the effect of ripple groove, the carriage release lever rebound, go out the liquid piece and collect indoor extraction from the sample, then with a carousel hole transfer to the leftmost side, start the rotation of jam plate axle, drive jam plate lapse, block up the left import of feed liquor pipe, start reciprocating lever and carry out reciprocating motion once in automatically controlled spout, pass through feed liquor pipe suction piston intracavity with the indoor pure water of clean water, the rethread liquid piece downward discharge carousel hole is discharged the leakage fluid dram downwards. The whole pipeline after sampling is washed, and the phenomenon that the normal sample data is influenced by the residual river water in the last time after the next sampling is avoided.

And after the river water of one water layer is sampled, starting the electric control slide block to slide downwards in the sampling head chute, so that the liquid inlet pipe slides downwards to enter the river water of a second water layer, and repeating the steps to sample and wash until the sampling of the water layer in the whole river water is completed. Through the movement of the electric control slide block in the device, a large amount of waves are not generated in the sampling process, the water layer is prevented from mixing, and more accurate data is obtained.

Compared with the prior art, the automatic sampling system for river polluted water has the following advantages:

1. the filtering device has the advantages that the filtering device can block and filter colloid pollutants drifting in a river, prevent colloid filter from blocking a sampling port, and meanwhile, the result of detecting chemical sample data in the river is more accurate, and the blocking effect is enhanced along with the rotation of the filter cylinder, so that the normal water flow is guaranteed.

2. The colloid pollutant hung on the filter opening is washed down, a large amount of bubbles are generated at the same time, the bubbles float and break, the colloid pollutant is shattered into small blocks, the cleaning effect is improved, and the colloid pollutant is prevented from being hung on the filter cylinder and being difficult to take down.

3. The whole pipeline after sampling is washed, and the phenomenon that the normal sample data is influenced by the residual river water in the last time after the next sampling is avoided.

4. Through the movement of the electric control slide block in the device, a large amount of waves are not generated in the sampling process, the water layer is prevented from mixing, and more accurate data is obtained.

Drawings

Fig. 1 is a schematic structural diagram of an automatic sampling system for river polluted water.

Fig. 2 is a sectional view taken along a line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Fig. 4 is an enlarged view of the structure at C in fig. 1.

Fig. 5 is a sectional view taken along line D-D in fig. 1.

In the figure, 10, the housing; 11. a filter cartridge; 12. a filter port; 13. a sampling chamber; 14. cleaning a water chamber; 15. an electric control slide block; 16. a sampling head chute; 17. a travel bar; 18. a sampling cavity; 19. a turntable; 20. a turntable shaft; 21. a left driving wheel; 22. a liquid discharge port; 23. a motor; 24. an impeller; 25. an impeller shaft; 26. an upper bevel gear; 27. a filter cartridge shaft; 28. a lower bevel gear; 29. a lower fixing rod; 30. an annular groove sliding block; 31. an air outlet; 32. a pump machine; 33. a transmission belt; 34. a right rotating shaft; 35. a right driving wheel; 36. a sleeve; 37. a corrugated groove; 38. a sealing block; 39. a sampling and collecting chamber; 40. discharging the liquid block; 41. a piston cavity; 42. a piston; 43. an electrically controlled chute; 44. a reciprocating lever spring; 45. a reciprocating lever; 46. an upper fixing rod; 47. a liquid inlet pipe; 48. a blocking plate; 49. blocking the plate shaft; 50. a turntable hole.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, an automatic sampling system for river polluted water, including a housing 10, a fixed dead lever 46 that is equipped with on the lateral wall on housing 10, go up the fixed sampling chamber 13 that is equipped with of dead lever 46 downside, be equipped with sampling chamber 18 in the sampling chamber 13, be equipped with the sample collection device in the sampling chamber 18, the sample collection device is used for taking a sample the collection with the river that is detected, be equipped with height adjusting device on the sampling chamber 13 left side wall, it is equipped with filter cartridge axle 27 to rotate on the lateral wall under the sampling chamber 13, it is equipped with a section of thick bamboo 11 to strain fixed being equipped with on the filter cartridge axle 27, it is equipped with a plurality of filtration mouth 12 on the section of thick bamboo 11, it is equipped with filter equipment on the section of thick bamboo 11 to strain, filter equipment is used for filtering the colloid pollutant in the river, avoid blockking up.

As shown in fig. 1 and 2, the filter cartridge shaft 27 extends downward to the outside of the housing 10, the filtering device includes an upper bevel gear 26 fixedly disposed at the lower end of the filter cartridge shaft 27, a lower fixing rod 29 is fixedly disposed on the lower side wall of the sampling chamber 13, an annular groove slider 30 is fixedly disposed on the lower fixing rod 29, an annular groove is fixedly disposed on the lower side wall of the filter cartridge 11, the annular groove slider 30 slides in the annular groove, an impeller shaft 25 is rotatably disposed at the lower side of the lower fixing rod 29, an impeller 24 is fixedly disposed at the left end of the impeller shaft 25, a lower bevel gear 28 is fixedly disposed at the right end of the impeller shaft 25, and the lower bevel gear 28 is.

As shown in fig. 1 and 5, height adjusting device is including fixed sampling head spout 16 that sets up on the left side wall of sampling chamber 13, sampling head spout 16 slides from top to bottom and is equipped with automatically controlled slider 15, the fixed feed liquor pipe 47 that is equipped with on the automatically controlled slider 15, feed liquor pipe 47 is the L type, it is equipped with jam plate shaft 49 to rotate on the feed liquor pipe 47 left side wall, the fixed jam plate 48 that is equipped with on the jam plate shaft 49, jam plate 48 is used for blockking up the vertical section of feed liquor pipe 47, feed liquor pipe 47 left side is equipped with the check valve entry, feed liquor pipe 47 upside wall is equipped with the check valve entry.

As shown in fig. 1, the sampling and collecting device includes an electric control chute 43 fixed on the upper side wall of the sampling cavity 18, a reciprocating rod 45 is arranged in the electric control chute 43 in a vertically sliding manner, a reciprocating rod spring 44 is connected between the upper side wall of the reciprocating rod 45 and the upper side wall of the electric control chute 43, a piston cavity 41 is fixedly arranged on the rear side wall of the sampling cavity 18, a piston 42 is arranged in the piston cavity 41 in a vertically sliding manner, the piston 42 is fixedly connected with the lower side wall of the reciprocating rod 45, and a liquid inlet check valve pipe is connected between the lower left side wall of the piston 42 and the right end of a liquid.

As shown in fig. 1, a motor 23 is fixedly arranged on the lower side wall of the sampling cavity 18, a turntable shaft 20 is arranged on the output end of the motor 23, a left driving wheel 21 is fixedly arranged on the lower side of the turntable shaft 20, a turntable 19 is fixedly arranged on the upper end of the turntable shaft 20, four sampling collection chambers 39 are annularly and fixedly arranged on the turntable 19, a sealing block 38 is rotatably arranged on each sampling collection chamber 39, a right rotating shaft 34 is rotatably arranged on the lower right side wall of the sampling cavity 18, a right driving wheel 35 is fixedly arranged at the lower end of the right rotating shaft 34, a driving belt 33 is connected between the right driving wheel 35 and the left driving wheel 21, a sleeve 36 is fixedly arranged on the upper end of the right rotating shaft 34, a corrugated groove 37 is fixedly arranged on the sleeve 36, a moving rod 17 is slidably arranged on the corrugated groove 37, a liquid outlet block 40 is fixedly arranged at the left end of the moving rod 17, a liquid outlet check valve pipe is connected between the liquid outlet block, the problem of inaccurate sampling result caused by the existence of residual samples is avoided.

As shown in fig. 1 and 3, the pipeline cleaning device includes a cleaning water chamber 14 fixed on the upper left side wall of the sampling cavity 18, a hose is connected between the cleaning water chamber 14 and the upper side wall of the liquid inlet pipe 47, a liquid outlet 22 is fixedly arranged on the lower side wall of the sampling cavity 18, four rotating disc holes 50 are annularly and fixedly arranged on the rotating disc 19, and the leftmost rotating disc hole 50 is opposite to the liquid outlet 22 along with the rotation of the rotating disc 19.

As shown in fig. 1 and 2, the filter screen cleaning device includes a pump 32 fixed on the lower side wall of the housing 10, an air outlet 31 is fixed on the lower right side wall of the sampling chamber 13, the air outlet 31 is communicated with an air outlet pipe of the pump 32, and the pump 32 is communicated with a water inlet pipe on the right side between the filter cartridge 11 and the sampling chamber 13.

The device is fixed at a river to be sampled, the river impacts the impeller 24 to drive the impeller shaft 25 to rotate under the action of the shell 10, the lower bevel gear 28 rotates to be meshed with the upper bevel gear 26 to rotate, the filter cylinder shaft 27 is driven to rotate, the filter cylinder 11 rotates to block and filter floating colloid pollutants in the river, the situation that colloid filter blocks a sampling opening is avoided, the result of detecting chemical sample data in the river is more accurate, the blocking effect is enhanced along with the rotation of the filter cylinder 11, and normal water flow is guaranteed.

The colloid pollutants which are blocked and filtered are hung on the filter cartridge 11 and gradually accumulated, the pump 32 is started at regular time, the pump 32 pumps the filtered river water into the pump 32, the river water is pumped out through the air outlet 31 and impacts the filter cartridge 11 which is rotated to the right side, the colloid pollutants hung on the filter opening 12 are washed down, a large amount of air bubbles are generated at the same time, the air bubbles float and break, the colloid pollutants are shattered into small blocks, the cleaning effect is improved, and the colloid pollutants are prevented from being hung on the filter cartridge 11 and being difficult to take down.

When river water needs to be sampled, the reciprocating rod 45 is started to move upwards in the electric control sliding groove 43, the piston 42 moves upwards in the piston cavity 41, the river water is sucked through an inlet on the left side of the liquid inlet pipe 47 on the electric control sliding block 15, meanwhile, the motor 23 is started to drive the rotary disc shaft 20 to rotate, the rotary disc 19 rotates, one sampling and collecting chamber 39 is rotated to the leftmost side, the left driving wheel 21 drives the right driving wheel 35 to rotate, the right rotating shaft 34 rotates, the sleeve 36 is driven to rotate, the moving rod 17 moves downwards, the liquid outlet block 40 is inserted into the sampling and collecting chamber 39 on the leftmost side, the reciprocating rod 45 is started to move downwards in the electric control sliding groove 43, the piston 42 is driven to move downwards in the piston cavity 41, and the pumped river water is discharged into the sampling and collecting chamber 39 on the left side to be collected.

The motor 23 is continuously started to drive the rotary disc shaft 20 to continuously rotate, so that the rotary disc 19 rotates, the moving rod 17 moves upwards under the action of the corrugated groove 37, the liquid outlet block 40 is pulled out of the sampling collection chamber 39, then one rotary disc hole 50 is rotated to the leftmost side, the blocking plate shaft 49 is started to rotate to drive the blocking plate 48 to rotate downwards to block the inlet on the left side of the liquid inlet pipe 47, the reciprocating rod 45 is started to reciprocate once in the electric control sliding groove 43, purified water in the cleaning water chamber 14 is pumped into the piston cavity 41 through the liquid inlet pipe 47, and then is downwards discharged into the rotary disc hole 50 through the liquid outlet block 40 to be downwards discharged into the liquid outlet 22. The whole pipeline after sampling is washed, and the phenomenon that the normal sample data is influenced by the residual river water in the last time after the next sampling is avoided.

After the river water of one water layer is sampled, the electric control slide block 15 is started to slide downwards in the sampling head slide groove 16, so that the liquid inlet pipe 47 slides downwards to enter the river water of a second water layer, and the steps are repeated to sample and wash until the sampling of the water layer in the whole river water is completed. Through the movement of the electric control slide block 15 in the device, a large amount of waves are not generated in the sampling process, the water layer is prevented from mixing, and more accurate data is obtained.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An automatic river polluted water sampling system comprises a shell (10) and is characterized in that an upper fixing rod (46) is fixedly arranged on the upper side wall of the shell (10), a sampling chamber (13) is fixedly arranged on the lower side of the upper fixing rod (46), a sampling cavity (18) is arranged in the sampling chamber (13), a sampling and collecting device is arranged in the sampling cavity (18), the sampling and collecting device is used for sampling and collecting detected river water, a height adjusting device is arranged on the left side wall of the sampling chamber (13), a filter cylinder shaft (27) is rotatably arranged on the lower side wall of the sampling chamber (13), a filter cylinder (11) is fixedly arranged on the filter cylinder shaft (27), a plurality of filter openings (12) are formed in the filter cylinder (11), a filter device is arranged on the filter cylinder (11) and is used for filtering colloid pollutants in river water to avoid blocking the sampling openings, and a filter screen cleaning device is arranged on the lower side wall of the shell (10) and used for cleaning the suspended colloid pollutants in the filter opening (12).

2. The automatic sampling system of river polluted water according to claim 1, wherein: filter cylinder axle (27) downwardly extending to the casing (10) outside, filter equipment is including fixed setting up last bevel gear (26) of filter cylinder axle (27) lower extreme, fixed dead lever (29) down being equipped with on the lateral wall under sampling chamber (13), fixed ring channel slider (30) of being equipped with on dead lever (29) down, it is equipped with a ring channel to strain to fix on the lateral wall under filter cylinder (11), ring channel slider (30) slide in this ring channel, dead lever (29) downside is rotated down and is equipped with impeller shaft (25), impeller shaft (25) left end is fixed and is equipped with impeller (24), impeller shaft (25) right-hand member is fixed and is equipped with down bevel gear (28), down bevel gear (28) with go up bevel gear (26) meshing.

3. The automatic sampling system of river polluted water according to claim 2, wherein: height adjusting device is including fixed setting up sampling head spout (16) on sampling chamber (13) left side wall, the upper and lower slip of sampling head spout (16) is equipped with automatically controlled slider (15), fixed feed liquor pipe (47) of being equipped with on automatically controlled slider (15), feed liquor pipe (47) are the L type, it is equipped with jam plate axle (49) to rotate on feed liquor pipe (47) left side wall, the fixed jam plate (48) that is equipped with on jam plate axle (49), jam plate (48) are used for blockking up the vertical section of feed liquor pipe (47), feed liquor pipe (47) left side is equipped with the check valve entry, the lateral wall is equipped with the check valve entry on feed liquor pipe (47).

4. The automatic sampling system of river polluted water according to claim 3, wherein: sample collection device is including fixing automatically controlled spout (43) on side wall on sample chamber (18), it is equipped with reciprocating lever (45) to slide from top to bottom in automatically controlled spout (43), reciprocating lever (45) go up the lateral wall with be connected with reciprocating lever spring (44) between side wall on automatically controlled spout (43), sample chamber (18) back side wall is gone up and is fixed and be equipped with piston chamber (41), it is equipped with piston (42) to slide from top to bottom in piston chamber (41), piston (42) with side wall fixed connection under reciprocating lever (45), piston (42) lower left side wall with be connected with the feed liquor check valve pipe between feed liquor pipe (47) the right-hand member.

5. The automatic sampling system of river polluted water according to claim 4, wherein: the sampling device is characterized in that a motor (23) is fixedly arranged on the lower side wall of the sampling cavity (18), a turntable shaft (20) is arranged on the output end of the motor (23), a left driving wheel (21) is fixedly arranged on the lower side of the turntable shaft (20), a turntable (19) is fixedly arranged at the upper end of the turntable shaft (20), four sampling and collecting chambers (39) are annularly and fixedly arranged on the turntable (19), a sealing block (38) is rotatably arranged on each sampling and collecting chamber (39), a right rotating shaft (34) is rotatably arranged on the lower right side wall of the sampling cavity (18), a right driving wheel (35) is fixedly arranged at the lower end of the right rotating shaft (34), a driving belt (33) is connected between the right driving wheel (35) and the left driving wheel (21), a sleeve (36) is fixedly arranged at the upper end of the right rotating shaft (34), a corrugated groove (37) is fixedly arranged on the sleeve (36), a moving rod (17), the utility model discloses a sampling device, including removal pole (17), piston chamber (41), removal pole (17) left end is fixed and is equipped with out liquid piece (40), go out liquid piece (40) with be connected with out liquid check valve pipe between the lateral wall under piston chamber (41), be equipped with pipeline cleaning device in sampling chamber (18), pipeline cleaning device is used for wasing whole sample flow, avoids remaining sample to exist, causes the unsafe problem of sampling result.

6. The automatic sampling system of river polluted water according to claim 5, wherein: pipeline cleaning device is including fixing clean hydroecium (14) on the side wall of sample chamber (18) the upper left side, clean hydroecium (14) with be connected with the hose between feed liquor pipe (47) the side wall, sample chamber (18) are fixed on the side wall down and are equipped with leakage fluid dram (22), annular is fixed on carousel (19) and is equipped with four carousel holes (50), along with carousel (19) are rotatory, leftmost carousel hole (50) with leakage fluid dram (22) are just right.

7. The automatic sampling system of river polluted water according to claim 6, wherein: filter screen cleaning device is including fixing pump (32) on casing (10) lower lateral wall, fixed gas outlet (31) that are equipped with on the right side wall under sampling chamber (13), gas outlet (31) with the outlet duct intercommunication of pump (32), pump (32) with strain a section of thick bamboo (11) with the rivers intercommunication feed liquor pipe on right side between sampling chamber (13).