Drinking water-grade polyaluminum chloride detection device

Abstract

The utility model discloses a drinking water grade polyaluminum chloride detection device, which relates to the technical field of quality inspection of water purifiers and comprises a base, a circular groove is formed in the upper surface of the base, a turntable is arranged in the circular groove, a stand column is vertically connected to the center of the upper surface of the base, and a top plate is connected to the top of the stand column. A controller is mounted in the base, a first bearing is connected between the outer side of the bottom of the turntable and the base, and a first gear ring is connected to the bottom of the turntable close to the outer edge. According to the utility model, the detection mechanism is arranged, so that the turbidity of the clear liquid above the precipitate can be detected through the turbidity sensor to replace manual visual inspection of precipitation completion, and the accuracy and speed of polyaluminum chloride water purification efficiency quality inspection are improved; by arranging the feeding mechanism and the cleaning mechanism, the steps of feeding, stirring, detecting, precipitating, waste discharging and cleaning can be automatically and continuously completed in the detection process of the water purification efficiency of the polyaluminum chloride, the hands of workers are liberated, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of water purification agent quality inspection technology, specifically a drinking water grade polyaluminum chloride testing device. Background Technology

[0002] Polyaluminum chloride (PAC) is an inorganic polymer water purification agent and flocculant. Based on different effects on water treatment, it is divided into two types: one for drinking water and one for non-drinking water. The finished PAC product is mostly in solid powder form. During the production process, because the purification requirements for PAC used in drinking water purification are higher, it is usually necessary to take samples of wastewater for treatment to ensure the quality of PAC purification. The time required for PAC from the start of flocculation to complete flocculation and sedimentation is observed to see if it meets the standard range, thereby detecting whether the water purification efficiency of PAC meets the standard.

[0003] Currently, the water purification efficiency testing of polyaluminum chloride is usually carried out in a transparent container. Whether flocculation and sedimentation are complete depends solely on manual visual observation. However, the naked eye cannot see the fine particles in the water, which not only leads to large errors and fails to meet the accuracy of quality inspection, but also consumes time and manpower, making it impossible to complete an automated operation process for testing the water purification efficiency of polyaluminum chloride. Utility Model Content

[0004] The purpose of this invention is to provide a drinking water grade polyaluminum chloride detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drinking water grade polyaluminum chloride testing device, comprising a base, a circular groove on the upper surface of the base, a turntable disposed inside the circular groove, a column vertically connected to the center of the upper surface of the base, a top plate connected to the top of the column, a controller installed inside the base, a first bearing connected between the bottom outer side of the turntable and the base, a first toothed ring connected to the bottom of the turntable near the outer edge, a first gear installed inside the first toothed ring, a rotary motor connected to the bottom of the first gear, a groove on the upper surface of the turntable, a buffer pad laid on the inner wall of the groove, a testing cup movably placed inside the groove, a feeding mechanism penetrating through the edge of the top plate near one side, a cleaning mechanism penetrating through the top plate near the feeding mechanism, and a testing mechanism installed at the bottom of the top plate near the cleaning mechanism.

[0006] Preferably, the turntable is cylindrical, the bottom of the turntable is rotatably connected to the base via a first bearing, the first gear meshes with a first gear ring, the number of grooves is one, and the detection cup is movably placed inside the groove.

[0007] Preferably, the space between the turntable and the top plate is annular, divided into four fan-shaped areas, which are arranged in clockwise order as the feeding position, the stationary position, the detection position, and the cleaning position.

[0008] Preferably, the feeding mechanism includes a sewage nozzle, a feeding cylinder connected to the top of the sewage nozzle, a feeding seat connected to the bottom side wall of the sewage nozzle, a stirring motor mounted on the top of the feeding seat, a main gear connected to the shaft end of the stirring motor through the feeding seat, a secondary gear meshing with one side of the main gear, a stirring rod passing through the middle of the secondary gear, a sewage pipe connected to the middle side wall of the sewage nozzle, a sewage pump connected to the top of the sewage pipe, the sewage nozzle communicating with the sewage pump through the sewage pipe, the sewage pump being connected to sample sewage through a pipe, and the stirring rod being rotatably connected to the stirring motor via the main gear and the secondary gear.

[0009] Preferably, the cleaning mechanism includes a cleaning nozzle, a cleaning cylinder is connected to the top of the cleaning nozzle, a cleaning pipe is connected to the middle side wall of the cleaning nozzle, a cleaning water pump is connected to the top of the cleaning pipe, the cleaning nozzle is connected to the cleaning water pump through the cleaning pipe, and the cleaning water pump is connected to clean water through the pipe.

[0010] Preferably, the detection mechanism includes an electric telescopic rod, with a detection seat connected to the telescopic end of the electric telescopic rod. A turbidity sensor is installed through the detection seat. The electric telescopic rod is installed at the bottom of the top plate, and the telescopic end of the electric telescopic rod is connected to the turbidity sensor via the detection seat. Both the electric telescopic rod and the turbidity sensor are electrically connected to the controller via a circuit.

[0011] Preferably, a lifting cylinder is embedded in the side of the column near the cleaning position, a clamping mechanism is installed on the moving part of the lifting cylinder, a guide plate is installed on the upper surface of the base near the cleaning position, and a waste liquid collection box is movably placed below the guide plate.

[0012] Preferably, the clamping mechanism includes a clamping seat, with movable seats provided inside both side walls of the clamping seat. A sliding groove is formed on the inner side wall of the movable seat, and a clamping block is provided inside the sliding groove. A clamping cylinder is installed on the outer side wall of the movable seat. A second toothed ring is sleeved on the outer side of the movable seat. A second gear is meshed with one side of the second toothed ring, and a drive motor is connected to the middle of the second gear. The clamping seat is U-shaped and is installed on the moving part of the lifting cylinder. The movable seat is clamped in the side wall of the clamping seat via the first toothed ring and forms a rotatable connection with the clamping seat. The clamping block is a rectangular block with one side arc-shaped and is slidably connected to the inner wall of the sliding groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This drinking water grade polyaluminum chloride (PAC) testing device, through the setting of a testing mechanism, moves the test cup after sedimentation in the static position to the testing position. The electric telescopic rod extends and pushes the testing seat downward, which in turn moves the probe of the turbidity sensor downward until the probe is inserted into the test cup to a preset depth. The turbidity sensor detects the turbidity of the clear liquid at a fixed position in the test cup after sedimentation. If the detected turbidity data exceeds the preset range, it indicates that the water purification efficiency of the PAC sample has not met the standard. If the turbidity data is within the preset range, it indicates that it has met the standard. By detecting the turbidity of the clear liquid above the sedimentation using the turbidity sensor, the device replaces manual visual observation to determine whether sedimentation is complete, increasing the accuracy and speed of PAC water purification efficiency quality inspection.

[0015] 2. This drinking water grade polyaluminum chloride (PAC) testing device, through the setting of a feeding mechanism and a cleaning mechanism, divides the space between the turntable and the top plate into four sections: a feeding position, a settling position, a testing position, and a cleaning position. During feeding, the feeding cylinder extends, pushing the wastewater nozzle and feeding seat downwards, allowing the wastewater nozzle to insert into the testing cup and introduce the wastewater sample. Simultaneously, a stirring rod is inserted into the testing cup, and then the stirring motor drives the stirring rod to rotate, automatically stirring and mixing the PAC and wastewater. The rotating motor drives the turntable to rotate via the first gear and the first gear ring, conveying the mixed testing cup to the settling position, allowing the flocculation in the testing cup to settle. Before sedimentation is complete, the turntable moves the test cup to the bottom of the testing mechanism. After the preset sedimentation time is reached, the testing mechanism detects the turbidity of the supernatant and obtains the turbidity data. Then, the turntable moves the test cup to the cleaning position, where the clamping mechanism picks up the test cup from the groove and tilts it to pour out the wastewater in the test cup, allowing the wastewater in the test cup to flow into the waste liquid collection tank through the guide plate. The cleaning mechanism then sprays clean water to rinse the inner wall of the test cup. This process of testing the water purification efficiency of polyaluminum chloride automatically and continuously completes the steps of feeding, stirring, testing, sedimentation, waste discharge, and cleaning, freeing up manual labor and speeding up the testing efficiency. Attached Figure Description

[0016] Figure 1 This is a front sectional view of the present invention.

[0017] Figure 2 This is a schematic diagram of the feeding mechanism of this utility model;

[0018] Figure 3 This is a side sectional view of the present invention;

[0019] Figure 4 This is a top-view cross-sectional view of the clamping mechanism of this utility model.

[0020] In the diagram: 1. Base; 2. Circular groove; 3. Turntable; 31. First bearing; 32. First gear ring; 33. First gear; 34. Rotary motor; 35. Groove; 36. Buffer pad; 4. Column; 5. Top plate; 6. Controller; 7. Detection cup; 8. Feeding mechanism; 81. Sewage nozzle; 82. Feeding cylinder; 83. Feeding seat; 84. Stirring motor; 85. Main gear; 86. Secondary gear; 87. Stirring rod; 88. Sewage pump; 89. Sewage pipe; 9. Detection mechanism; 91. Electric telescopic rod; 92. Detection seat; 93. Turbidity sensor; 10. Cleaning mechanism; 101. Cleaning nozzle; 102. Cleaning cylinder; 103. Cleaning pipe; 104. Cleaning water pump; 11. Lifting cylinder; 12. Clamping mechanism; 121. Clamping seat; 122. Movable seat; 123. Slide groove; 124. Clamping block; 125. Clamping cylinder; 126. Second gear ring; 127. Second gear; 128. Drive motor; 13. Guide plate; 14. Waste liquid collection tank. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figures 1 to 4As shown, the drinking water grade polyaluminum chloride testing device of this embodiment includes a base 1. A circular groove 2 is formed on the upper surface of the base 1, and a turntable 3 is arranged inside the circular groove 2. A column 4 is vertically connected to the center of the upper surface of the base 1. The bottom of the column 4 is integrally connected to the base 1, and the top is bolted to the top plate 5. The top of the column 4 is connected to the top plate 5. A controller 6 is installed inside the base 1. A first bearing 31 is connected between the bottom outer side of the turntable 3 and the base 1. A first toothed ring 32 is connected to the bottom of the turntable 3 near the outer edge. The first toothed ring 32 is a circular ring with teeth on the inner wall and is welded and fixed to the turntable 3. A first gear 33 is installed on the inner side of the first toothed ring 32, and a rotating electric current is connected to the bottom of the first gear 33. The rotary motor 34 is connected to the first gear 33 at its shaft end. The rotary motor 34 has a torque of 90° for each rotation and is electrically connected to the controller 6 through a circuit. The upper surface of the turntable 3 has a groove 35. The inner wall of the groove 35 is lined with a buffer pad 36. The buffer pad 36 is used to squeeze and position the test cup 7 inside the groove 35 and to buffer and resist shock, reducing the vibration impact on the test cup 7 during the rotation of the turntable 3. The test cup 7 is movably placed inside the groove 35. The feeding mechanism 8 is installed through the edge of the top plate 5 near one side. The cleaning mechanism 10 is installed through the side of the top plate 5 near the feeding mechanism 8. The detection mechanism 9 is installed at the bottom of the top plate 5 near the cleaning mechanism 10.

[0024] Specifically, the turntable 3 is cylindrical, and its bottom is rotatably connected to the base 1 via the first bearing 31. The first gear 33 meshes with the first gear ring 32. The turntable 3 is driven to rotate by the rotary motor 34 via the first gear 33 and the first gear ring 32. The turntable 3 drives the detection cup 7 to be conveyed sequentially to the feeding position, the stationary position, the detection position, and the cleaning position. There is one groove 35, and the detection cup 7 is movably placed inside the groove 35. The inner diameter of the buffer pad 36 is smaller than that of the detection cup 7. When the detection cup 7 is inserted into the groove 35, it squeezes and deforms the buffer pad 36. The rebound force of the buffer pad 36 is used to squeeze the detection cup 7 to be stably placed in the groove 35, and the buffering effect prevents the detection cup 7 from shaking.

[0025] Furthermore, the space between the turntable 3 and the top plate 5 is circular, divided into four fan-shaped areas. The four fan-shaped areas are, in clockwise order, the feeding position, the settling position, the detection position, and the cleaning position. This allows the polyaluminum chloride water purification efficiency detection process to automatically and continuously complete the feeding, stirring, detection, sedimentation, waste discharge, and cleaning steps, freeing up manual labor and accelerating the detection efficiency.

[0026] Furthermore, the feeding mechanism 8 includes a sewage nozzle 81, with a feeding cylinder 82 connected to the top of the sewage nozzle 81. The feeding cylinder 82 is mounted on the top plate 5 and electrically connected to the controller 6 via a circuit. A feeding seat 83 is connected to the bottom side wall of the sewage nozzle 81 for connecting the sewage nozzle 81 and the stirring rod 87. A stirring motor 84 is mounted on the top of the feeding seat 83. The stirring motor 84 is mounted on the feeding seat 83, and the shaft end of the stirring motor 84 passes through the feeding seat 83 and is connected to a main gear 85. A secondary gear 86 is meshed on one side of the main gear 85, and the secondary gear 86 is disposed through the middle. There is a stirring rod 87, and a sewage pipe 89 is connected to the middle side wall of the sewage nozzle 81. A sewage pump 88 is connected to the top of the sewage pipe 89. The actual model of the sewage pump 88 is selected according to the actual size of the top plate 5. The sewage pump 88 is electrically connected to the controller 6 through the circuit. The sewage nozzle 81 is connected to the sewage pump 88 through the sewage pipe 89. The sewage pump 88 is connected to the sample sewage through the pipe. The stirring rod 87 is rotatably connected to the stirring motor 84 through the main gear 85 and the auxiliary gear 86. The stirring motor 84 drives the stirring rod 87 to rotate and automatically stir and mix the polyaluminum chloride and the sewage.

[0027] Furthermore, the cleaning mechanism 10 includes a cleaning nozzle 101, a cleaning cylinder 102 connected to the top of the cleaning nozzle 101, the cleaning cylinder 102 being mounted on the top plate 5, a cleaning pipe 103 connected to the middle side wall of the cleaning nozzle 101, a cleaning water pump 104 connected to the top of the cleaning pipe 103, the cleaning nozzle 101 being connected to the cleaning water pump 104 through the cleaning pipe 103, the cleaning water pump 104 being connected to clean water through a pipe, and the clean water being used to flow into the test cup 7 to rinse the residue inside the inner test cup 7 after testing.

[0028] Furthermore, the detection mechanism 9 includes an electric telescopic rod 91, with a detection seat 92 connected to the telescopic end of the bottom of the electric telescopic rod 91. A turbidity sensor 93 is installed through the detection seat 92, and the probe of the turbidity sensor 93 is mounted on the detection seat 92. The actual model of the turbidity sensor 93 is selected according to the actual particle concentration range of the supernatant and the detection accuracy. The electric telescopic rod 91 is installed at the bottom of the top plate 5, and the telescopic end of the electric telescopic rod 91 is connected to the turbidity sensor 93 via the detection seat 92. Both the electric telescopic rod 91 and the turbidity sensor 93 are electrically connected to the controller 6 through a circuit. When the electric telescopic rod 91 extends, it pushes the detection seat 92 downward, and the detection seat 92 drives the probe of the turbidity sensor 93 downward until the probe is inserted into the detection cup 7 to reach a preset depth. The probe is located at the bottom of the supernatant near the flocculation sedimentation. Before detection, the turbidity sensor 93 needs to collect standard sample purification detection data as a reference, and the depth of the probe in each detection should be consistent with the standard reference.

[0029] Furthermore, a lifting cylinder 11 is embedded in the side of the column 4 near the cleaning position to drive the clamping seat 121 to rise and fall. A clamping mechanism 12 is installed on the moving part of the lifting cylinder 11. A guide plate 13 is installed on the upper surface of the base 1 near the cleaning position to guide the waste liquid poured out of the test cup 7 into the waste liquid collection box 14. The waste liquid collection box 14 is movably placed below the guide plate 13.

[0030] Furthermore, the clamping mechanism 12 includes a clamping seat 121, with movable seats 122 arranged inside both side walls of the clamping seat 121. The movable seats 122 are cylindrical, and a sliding groove 123 is formed on the inner side wall of the movable seat 122. A clamping block 124 is arranged inside the sliding groove 123. The clamping block 124 slides and extends within the sliding groove 123. When the clamping block 124 extends, it clamps the side wall of the detection cup 7. When the clamping block 124 retracts into the sliding groove 123, it does not clamp. A clamping cylinder 125 is installed on the outer side wall of the movable seat 122. A second toothed ring 126 is sleeved on the outer side of the movable seat 122. A second gear 127 is meshed on one side of the second toothed ring 126. A drive motor 128 is connected to the middle of the second gear 127. The drive motor 128 is essentially a motor with forward and reverse rotation circuits. The drive motor 128 rotates, driving the second gear 127 to rotate. The second gear 127 drives the movable seat 122 to rotate via the second gear ring 126. The movable seat 122 drives the clamping cylinder 125 and the clamping block 124 to rotate. Then, the two clamping blocks 124 clamp the detection cup 7 and tilt it towards one side of the guide plate 13, pouring the waste liquid in the detection cup 7 into the waste liquid collection tank 14 for collection. The clamping seat 121 is U-shaped and is installed on the moving part of the lifting cylinder 11. The movable seat 122 is clamped in the side wall of the clamping seat 121 via the first gear ring 32 and forms a rotatable connection with the clamping seat 121. The clamping block 124 is a rectangular block with one side arc-shaped. The clamping block 124 is slidably connected to the inner wall of the slide groove 123, and the arc edge of the clamping block 124 is in contact with the outer wall of the detection cup 7.

[0031] The usage method of this embodiment is as follows: When the user is actually testing the produced drinking water grade polyaluminum chloride, firstly, a certain amount of polyaluminum chloride is placed in the test cup 7, the test cup 7 is inserted into the groove 35, and the buffer pad 36 is used for positioning, keeping the test cup 7 in the feeding position. Then, the feeding cylinder 82 is turned on, and the feeding cylinder 82 extends to push the sewage nozzle 81 and the feeding seat 83 downward, so that the sewage nozzle 81 is inserted into the test cup 7. The sewage pump 88 is started and a certain amount of sewage sample is introduced into the sewage nozzle 81 through the sewage pipe 89. The sewage sample flows from the sewage nozzle 81 into the test cup 7. Then, the controller 6 controls the stirring motor 84 to start. The shaft end of the stirring motor 84 drives the main gear 85 to rotate, and the main gear 85 drives the secondary gear 86 to rotate. Wheel 86 drives stirring rod 87 to rotate, stirring rod 87 to mix the wastewater and polyaluminum chloride in test cup 7. After mixing, feeding cylinder 82 retracts, pulling stirring rod 87 upward to remove it from test cup 7. Then controller 6 controls rotary motor 34 to start, rotary motor 34 drives first gear 33 to rotate, first gear 33 drives turntable 3 to rotate via first gear ring 32. Turntable 3 rotates 90° to convey the mixed test cup 7 to the settling position, and then lets test cup 7 stand in the settling position for a period of time. After a fixed time, rotary motor 34 starts again, turntable 3 drives test cup 7 to the detection position. After the preset sedimentation time is reached, controller 6 controls electric telescopic rod 91 to extend and push detection seat 92 downward. Detection seat 92 drives turbidity sensor. The probe 93 moves downwards until it is inserted into the test cup 7 to the specified depth of the supernatant. The laser beam emitted by the probe is reflected by the particles in the water and received by the receiver. The concentration of particles in the water is obtained based on the feedback from the reflected beam. If the turbidity data exceeds the preset range, it means that the time in the test cup 7 has expired but flocculation has not been completed or the flocculation capacity is insufficient, and the water purification efficiency of this polyaluminum chloride sample does not meet the standard. If the turbidity data is within the preset range, it means that the standard has been met. After the test is completed, the controller 6 controls the rotary motor 34 to continue rotating, and the turntable 3 moves the test cup 7 to the cleaning position. The lifting cylinder 11 drives the clamping seat 121 to move down and place it outside the test cup 7. Then the clamping cylinder 125 extends and pushes the clamping block 124 to clamp the two side walls of the test cup 7, cooperating with The lifting cylinder 11 drives the clamping seat 121 to move upward, using the clamping seat 121 to remove the test cup 7 from the groove 35. Then, the drive motor 128 is controlled to rotate, driving the second gear 127 to rotate. The second gear 127 drives the movable seat 122 to rotate via the second gear ring 126. The movable seat 122 drives the clamping cylinder 125 and the clamping block 124 to rotate, and then the two clamping blocks 124 clamp the test cup 7 and tilt it towards one side of the guide plate 13, pouring the waste liquid in the test cup 7 into the waste liquid collection tank 14 for collection. Afterward, the drive motor 128 rotates back to reset the test cup 7. The cleaning cylinder 102 extends and pushes the cleaning nozzle 101 into the test cup 7. At the same time, the cleaning water pump 104 introduces external clean water into the test cup 7 to rinse it.After rinsing, the waste liquid is poured into waste liquid collection tank 14 and collected, repeating the above steps.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drinking water grade polyaluminum chloride detection device, comprising a base (1), characterized in that: The base (1) has a circular groove (2) on its upper surface. A turntable (3) is installed inside the circular groove (2). A column (4) is vertically connected to the center of the upper surface of the base (1). A top plate (5) is connected to the top of the column (4). A controller (6) is installed inside the base (1). A first bearing (31) is connected between the bottom outer side of the turntable (3) and the base (1). A first toothed ring (32) is connected to the bottom of the turntable (3) near the outer edge. A first gear (33) is installed on the inner side of the first toothed ring (32). The first gear (33) is connected to a rotary motor (34) at the bottom. The upper surface of the turntable (3) is provided with a groove (35). The inner wall of the groove (35) is covered with a buffer pad (36). A test cup (7) is movably placed inside the groove (35). A feeding mechanism (8) is installed through the edge of the top plate (5) near one side. A cleaning mechanism (10) is installed through the top plate (5) near the feeding mechanism (8). A testing mechanism (9) is installed at the bottom of the top plate (5) near the cleaning mechanism (10).

2. The drinking water grade polyaluminum chloride detection device according to claim 1, characterized in that: The turntable (3) is cylindrical. The bottom of the turntable (3) is rotatably connected to the base (1) via the first bearing (31). The first gear (33) meshes with the first gear ring (32). There is one groove (35). The detection cup (7) is movably placed inside the groove (35).

3. The drinking water grade polyaluminum chloride detection device according to claim 1, characterized in that: The space between the turntable (3) and the top plate (5) is circular and divided into four fan-shaped areas. The four fan-shaped areas are, in clockwise order, the feeding position, the stationary position, the detection position, and the cleaning position.

4. The drinking water grade polyaluminum chloride detection device according to claim 1, characterized in that: The feeding mechanism (8) includes a sewage nozzle (81), a feeding cylinder (82) connected to the top of the sewage nozzle (81), a feeding seat (83) connected to the bottom side wall of the sewage nozzle (81), a stirring motor (84) installed on the top of the feeding seat (83), a main gear (85) connected to the shaft end of the stirring motor (84) through the feeding seat (83), a secondary gear (86) meshing with one side of the main gear (85), a stirring rod (87) passing through the middle of the secondary gear (86), a sewage pipe (89) connected to the middle side wall of the sewage nozzle (81), a sewage pump (88) connected to the top of the sewage pipe (89), the sewage nozzle (81) communicating with the sewage pump (88) through the sewage pipe (89), the sewage pump (88) being connected to the sample sewage through a pipe, and the stirring rod (87) being rotatably connected to the stirring motor (84) via the main gear (85) and the secondary gear (86).

5. The drinking water grade polyaluminum chloride detection device according to claim 1, characterized in that: The cleaning mechanism (10) includes a cleaning nozzle (101), a cleaning cylinder (102) is connected to the top of the cleaning nozzle (101), a cleaning pipe (103) is connected to the middle side wall of the cleaning nozzle (101), a cleaning water pump (104) is connected to the top of the cleaning pipe (103), the cleaning nozzle (101) is connected to the cleaning water pump (104) through the cleaning pipe (103), and the cleaning water pump (104) is connected to clean water through the pipe.

6. The drinking water grade polyaluminum chloride detection device according to claim 1, characterized in that: The detection mechanism (9) includes an electric telescopic rod (91), the telescopic end of which is connected to a detection seat (92), and a turbidity sensor (93) is installed through the detection seat (92). The electric telescopic rod (91) is installed at the bottom of the top plate (5), and the telescopic end of the electric telescopic rod (91) is connected to the turbidity sensor (93) via the detection seat (92). Both the electric telescopic rod (91) and the turbidity sensor (93) are electrically connected to the controller (6) via a circuit.

7. The drinking water grade polyaluminum chloride detection device according to claim 3, characterized in that: A lifting cylinder (11) is embedded in the side of the column (4) near the cleaning position. A clamping mechanism (12) is installed on the moving part of the lifting cylinder (11). A guide plate (13) is installed on the upper surface of the base (1) near the cleaning position. A waste liquid collection box (14) is movably placed below the guide plate (13).

8. The drinking water grade polyaluminum chloride detection device according to claim 7, characterized in that: The clamping mechanism (12) includes a clamping seat (121), with movable seats (122) provided inside both sides of the clamping seat (121). A sliding groove (123) is provided on the inner side wall of the movable seat (122), and a clamping block (124) is provided inside the sliding groove (123). A clamping cylinder (125) is installed on the outer side wall of the movable seat (122), and a second toothed ring (126) is sleeved on the outer side of the movable seat (122). The second toothed ring (126) is engaged on one side. A second gear (127) is connected, and a drive motor (128) is connected to the middle of the second gear (127). The clamping seat (121) is U-shaped and is installed on the moving part of the lifting cylinder (11). The movable seat (122) is clamped in the side wall of the clamping seat (121) via the first toothed ring (32) and forms a rotatable connection with the clamping seat (121). The clamping block (124) is a rectangular block with one side arc-shaped. The clamping block (124) is slidably connected to the inner wall of the slide groove (123).

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