Lake water monitoring pretreatment device

Abstract

The utility model relates to a lake water body monitoring pretreatment device, which comprises a base, a pretreatment cylinder, a primary filtering structure and a secondary filtering structure, and is technically characterized in that the whole device is positioned in a lake water body by adopting the base and a lifting positioning assembly, and a left cavity and a right cavity of the pretreatment cylinder are respectively used for standby and can be alternately sucked into the water body; in the process, impurities are firstly filtered out by utilizing a primary filtering structure, then refined filtration is performed again by utilizing a secondary filtering structure, and finally the water body passes through a left vertical pipe or a right vertical pipe, a conveying pipeline and a lifting pump to reach a sampling container on the shore. When the flow of liquid entering the sampling container is reduced, the primary filtering structure or the secondary filtering structure is blocked, and pressure water can enter the T-shaped pipe and then enter the left cavity and the right cavity through the left vertical pipe or the right vertical pipe, so that the purpose of backwashing the primary filtering structure and the secondary filtering structure is achieved. The device can be installed in a lake water body for a long time for continuous pretreatment, and real-time online monitoring of the water body is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality monitoring, in particular to a lake water body monitoring pretreatment device. Background Art

[0002] Water quality monitoring is to monitor the types of pollutants in natural water, the concentrations of various pollutants and their changing trends, so as to evaluate the water quality.

[0003] CN 215727181 U discloses a water quality monitoring pretreatment device, wherein a sewage trough is connected to one side of the outer wall of the tank body, a supporting wall is welded to the inner wall of the tank body, a filter bucket is rotatably connected to one side of the outer wall of the tank body, a lifting pipe is connected to the inner wall of the tank body close to the supporting wall, a cleaning motor is connected to the side of the tank body away from the outer wall of the sewage trough, and a sliding rod is connected to the inner wall of the tank body close to the cleaning motor. The device is intended to fully clean impurities in the water body through the filter bucket and the lifting pipe, and clean the bottom of the tank through the mud removal cover and the brush wheel. However, it has the following problems: 1. It is not suitable for direct installation in lake water bodies, and can only extract water to the filter bucket; 2. When the filter bucket is discharging sewage, the filtering work cannot continue, and long-term continuous filtering pretreatment work cannot be achieved. Utility Model Content

[0004] The purpose of the utility model is to provide a lake water monitoring and pretreatment device with a reasonable structure and reliable use to solve the above-mentioned problems. The device can be installed in lake water for a long time to perform continuous pretreatment work, which is conducive to realizing real-time online monitoring of water bodies.

[0005] The technical solution of the utility model is:

[0006] A lake water monitoring pretreatment device comprises a base, a pretreatment cylinder, a primary filtering structure and a secondary filtering structure, and its technical key points are: the edge of the base is provided with a lifting positioning component for fixing to the bottom of the lake, the center of the base is provided with a guide sleeve, the pretreatment cylinder is floatingly connected to the guide sleeve, a longitudinal partition is provided in the pretreatment cylinder and is divided into a left cavity and a right cavity by the longitudinal partition, a cover plate is fixed on the top of the pretreatment cylinder, a left drainage pipe connected to the left cavity and a right drainage pipe connected to the right cavity are fixed on the bottom of the pretreatment cylinder, and the primary filtering structure comprises a filter arranged at the end of the left drainage pipe and the right drainage pipe The filter hole group of the segment and the primary filter screen arranged outside the filter hole group, the secondary filter structure includes a secondary left filter screen built in the lower part of the left cavity and a secondary right filter screen built in the lower part of the right cavity, the cover plate is provided with a left standpipe inserted into the left cavity and a right standpipe inserted into the right cavity, the lower ends of the left standpipe and the right standpipe extend toward the secondary left filter screen and the secondary right filter screen, a T-shaped pipe is connected between the upper parts of the left standpipe and the right standpipe, the upper ends of the left standpipe and the right standpipe are respectively provided with water diversion control valves, and cleaning control valves are respectively provided at the two connecting ports of the T-shaped pipe and the left standpipe and the right standpipe.

[0007] In the above-mentioned lake water monitoring pretreatment device, an annular upper supporting skirt is provided on the upper portion of the outer circumferential surface of the pretreatment cylinder, an annular lower supporting skirt is provided on the upper end of the guide sleeve, and a plurality of connecting ropes are provided between the annular upper supporting skirt and the annular lower supporting skirt.

[0008] The above-mentioned lake water monitoring pretreatment device has a left sewage outlet connected to the left cavity and a right sewage outlet connected to the right cavity at the bottom of the pretreatment cylinder, and sewage valves are respectively provided at the left sewage outlet and the right sewage outlet.

[0009] In the above-mentioned lake water monitoring pretreatment device, the left drainage pipe and the right drainage pipe are respectively L-shaped, and the ends of the left drainage pipe and the right drainage pipe point in opposite directions.

[0010] The above-mentioned lake water monitoring and pretreatment device, the lifting and positioning assembly includes studs symmetrically arranged on both sides of the base, the base is provided with through holes corresponding to the studs, the studs are provided with upper locking nuts and lower locking nuts, the upper locking nuts and the lower locking nuts clamp the base therebetween, the upper end of the stud is provided with an expansion disk, and the lower end of the stud is provided with a cone tip.

[0011] The beneficial effects of the utility model are:

[0012] The entire device is positioned in the lake water body by using a base and a lifting positioning component. The left and right cavities of the pretreatment cylinder are used in a standby manner and can alternately absorb water. In this process, the primary filtration structure is used to filter out impurities first, and then the secondary filtration structure is used for fine filtration again. Finally, the water body passes through the left riser or the right riser, the delivery pipeline and the lifting pump to reach the sampling container on the shore. When the liquid flow entering the sampling container becomes smaller, it means that the primary filtration structure or the secondary filtration structure is blocked. Pressurized water can be used to enter the T-tube, and then enter the left and right cavities through the left riser or the right riser to achieve the purpose of backwashing the primary filtration structure and the secondary filtration structure. The left and right cavities are not cleaned at the same time to ensure continuous pretreatment work. Therefore, this device can be installed in the lake water body for a long time to carry out continuous pretreatment work, which is conducive to the realization of real-time online monitoring of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 yes Figure 1 Left view of .

[0015] In the figure: left riser 1, T-tube 2, right drainage pipe 3, water diversion control valve 4, cleaning control valve 5, cover plate 6, pretreatment cylinder 7, longitudinal partition 8, annular upper support skirt 9, involvement rope 10, annular lower support skirt 11, guide sleeve 12, expansion disk 13, stud 14, secondary left filter 15, secondary right filter 16, upper locking nut 17, base 18, lower locking nut 19, drain valve 20, right drain port 21, left drain port 22, right drainage pipe 23, left drainage pipe 24, primary filter 25. DETAILED DESCRIPTION

[0016] The utility model is described in detail according to the accompanying drawings of the specification.

[0017] like Figure 1 , Figure 2 As shown, the lake water monitoring pretreatment device includes a base 18, a pretreatment cylinder 7, a primary filtering structure and a secondary filtering structure.

[0018] Among them, the edge of the base 18 is provided with a lifting positioning component for fixing with the bottom of the lake. A guide sleeve 12 is provided at the center of the base 18, and the pretreatment cylinder 7 is floatingly connected in the guide sleeve 12. A longitudinal partition 8 is provided in the pretreatment cylinder 7 and is divided into a left cavity and a right cavity by the longitudinal partition 8. A cover plate 6 is fixed on the top of the pretreatment cylinder 7, and a left drainage pipe 24 connected to the left cavity and a right drainage pipe 23 connected to the right cavity are fixed at the bottom of the pretreatment cylinder 7. The primary filtering structure includes a filter hole group arranged at the end of the left drainage pipe 1 and the right drainage pipe 3, and a primary filter screen 25 arranged outside the filter hole group. The secondary filtering structure includes a secondary left filter screen 15 built into the lower part of the left cavity and a secondary right filter screen 16 built into the lower part of the right cavity. The cover plate 6 is provided with a left standpipe 1 inserted into the left cavity and a right standpipe 3 inserted into the right cavity, and the lower ends of the left standpipe 1 and the right standpipe 3 extend to the secondary left filter screen 15 and the secondary right filter screen 16. A T-shaped pipe 2 is connected between the upper parts of the left riser 1 and the right riser 3. Water diversion control valves 4 are respectively provided at the upper ends of the left riser 1 and the right riser 3. Cleaning control valves 5 are respectively provided at the two connecting ports of the T-shaped pipe 2 and the left riser 1 and the right riser 3.

[0019] In this embodiment, an annular upper support skirt 9 is provided on the upper part of the outer circumference of the pretreatment tube 7, an annular lower support skirt 11 is provided on the upper end of the guide sleeve 12, and a plurality of entanglement ropes 10 are provided between the annular upper support skirt 9 and the annular lower support skirt 11. A left sewage outlet 22 connected to the left cavity and a right sewage outlet 21 connected to the right cavity are provided at the bottom of the pretreatment tube 7, and sewage valves 20 are provided at the left sewage outlet 22 and the right sewage outlet 21 respectively. The left drainage pipe 24 and the right drainage pipe 23 are L-shaped respectively, and the ends of the left drainage pipe 24 and the right drainage pipe 23 point in opposite directions. The lifting and positioning assembly includes studs 14 symmetrically arranged on both sides of a base 18, the base 18 is provided with through holes corresponding to the studs 14, the studs 14 are provided with upper locking nuts 17 and lower locking nuts 19, the upper locking nuts 17 and lower locking nuts 19 clamp the base 18 therebetween, the upper end of the stud 14 is provided with an expansion disk 13, and the lower end of the stud 14 is provided with a cone tip.

[0020] Working principle:

[0021] 1. The lower ends of the two studs 14 are driven into the bottom soil layer of the lake water body, thereby positioning the device at a preset position.

[0022] 2. The pretreatment cylinder 7 floats in the water under the buoyancy of the water. When sampling, the water passes through the primary filter 25, the left drainage pipe 24, the left cavity, the secondary left filter 15, the left standpipe 1, the delivery pipeline and the lifting pump to reach the sampling container on the shore. At this time, the right drainage pipe 3 does not drain.

[0023] 3. When sampling, after the sampling flow rate drops to the set lower limit, switch the right drainage pipe 3 to drain, and the water passes through the primary filter 25, the right drainage pipe 23, the right cavity, the secondary right filter 16, the right standpipe 3, the delivery pipeline and the lifting pump to reach the sampling container on the shore. At this time, pressurized water is used to pass through the T-shaped pipe 2 and then enter the left cavity through the left standpipe 1 to achieve the purpose of backwashing the secondary left filter 15 and the primary filter 25. At the same time, the drain valve 20 can be opened to remove the sludge in the left cavity.

[0024] 4. In this way, the left and right cavities store flow and clean alternately, so that the device can be installed in lake water for a long time to carry out continuous pretreatment work, which is conducive to the realization of real-time online monitoring of water bodies.

[0025] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. A lake water monitoring pretreatment device, comprising a base, a pretreatment cylinder, a primary filtration structure and a secondary filtration structure, characterized in that: The edge of the base is provided with a lifting and positioning component for fixing to the bottom of the lake, the center of the base is provided with a guide sleeve, the pretreatment cylinder is floatingly connected in the guide sleeve, a longitudinal partition is provided in the pretreatment cylinder and is divided into a left cavity and a right cavity by the longitudinal partition, a cover plate is fixed on the top of the pretreatment cylinder, a left drainage pipe connected to the left cavity and a right drainage pipe connected to the right cavity are fixed on the bottom of the pretreatment cylinder, the primary filtering structure includes a filtering hole group arranged at the end of the left drainage pipe and the right drainage pipe, and a primary filtering net arranged outside the filtering hole group, The secondary filtering structure includes a secondary left filter screen built into the lower part of the left cavity and a secondary right filter screen built into the lower part of the right cavity. The cover plate is provided with a left vertical pipe inserted into the left cavity and a right vertical pipe inserted into the right cavity. The lower ends of the left vertical pipe and the right vertical pipe extend toward the secondary left filter screen and the secondary right filter screen. A T-shaped pipe is connected between the upper parts of the left vertical pipe and the right vertical pipe. The upper ends of the left vertical pipe and the right vertical pipe are respectively provided with water diversion control valves, and cleaning control valves are respectively provided at the two connecting ports of the T-shaped pipe and the left vertical pipe and the right vertical pipe.

2. The lake water monitoring pretreatment device according to claim 1 is characterized in that: An annular upper supporting skirt is arranged on the upper part of the outer peripheral surface of the pretreatment cylinder, an annular lower supporting skirt is arranged on the upper end of the guide sleeve, and a plurality of connecting ropes are arranged between the annular upper supporting skirt and the annular lower supporting skirt.

3. The lake water monitoring pretreatment device according to claim 1 is characterized in that: The bottom of the pretreatment cylinder is provided with a left sewage outlet communicated with the left cavity and a right sewage outlet communicated with the right cavity. The left sewage outlet and the right sewage outlet are respectively provided with sewage valves.

4. The lake water monitoring pretreatment device according to claim 1 is characterized in that: The left drainage tube and the right drainage tube are L-shaped respectively, and the ends of the left drainage tube and the right drainage tube point in opposite directions.

5. The lake water monitoring pretreatment device according to claim 1 is characterized in that: The lifting and positioning assembly includes studs symmetrically arranged on both sides of the base, the base is provided with through holes corresponding to the studs, the studs are provided with upper locking nuts and lower locking nuts, the upper locking nuts and the lower locking nuts clamp the base therebetween, the upper end of the stud is provided with an expansion disk, and the lower end of the stud is provided with a cone tip.

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