Water taking system of water quality on-line monitor

Abstract

The utility model relates to a water taking system of a water quality on-line monitor. The water taking system comprises a cylinder body, a sampling pump and a backflow water tank, a filter screen and a spraying device are arranged in the cylinder body, a sealing cover is arranged at the top end of the filter screen, a driving motor is arranged in the center of the bottom end of the sealing cover, a rotating shaft is arranged on a motor shaft of the driving motor, and a plurality of crushing blades are arranged on the rotating shaft; the top of the barrel is communicated with a water inlet of a sampling pump through a water inlet pipe, and a water outlet of the sampling pump is communicated with a water inlet of a water quality online monitor through a sampling pipe; the sampling pipe is communicated with an inlet of the backflow water tank through a backflow pipe, and a water outlet of the backflow water tank is communicated with the spraying device through a flushing pipe. The device has the beneficial effects that impurities are intercepted by the filter screen, and larger impurities are crushed into smaller impurities by the crushing blades, so that the problem of winding and blocking of the impurities is effectively prevented; when large membranous impurities are sucked, the protruding tip of the rotating shaft can pierce the large membranous impurities, and the pierced impurities are sucked into the position of the crushing blade to be crushed.

Description

Technical Field

[0001] The utility model relates to the field of on-line water quality monitoring equipment, in particular to a water intake system of an on-line water quality monitor. Background Art

[0002] The on-line water quality monitoring equipment is a monitoring equipment integrating automation and intelligence, which can realize the real-time monitoring of various pollutants in water bodies and transmit the data to the data center, so as to facilitate users to master the water quality conditions at any time. With its advantages of high efficiency, convenience, strong real-time performance, etc., the on-line water quality monitoring equipment plays an increasingly important role in the field of water quality monitoring. The on-line water quality monitoring equipment plays multiple roles in sewage treatment plants, such as real-time monitoring, optimizing operation management, improving the effluent quality, ensuring operation compliance, and intelligence and networking. It not only helps to ensure the stable operation of sewage treatment plants and the compliance of effluent quality, but also helps to improve management efficiency and protect the environment.

[0003] In the on-line water quality monitoring equipment, the water suction port of the sampling unit is placed in the water body to be measured, and water samples are automatically collected according to the setting, providing accurate samples for subsequent water quality analysis, which is a key component to ensure the reliability of water quality monitoring data. To prevent large impurities in the water body from blocking the water suction port, a filtering device is mostly configured at the front section of the water suction pipe during actual use. In the case of continuous use, impurities will be adsorbed on the filtering device along with the water flow. If the filtering device is not cleaned in time, blockage will also occur, resulting in the abnormal operation of the water quality monitor. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above problems existing in the prior art and provide a water intake system of an on-line water quality monitor.

[0005] To achieve the above technical purpose and reach the above technical effect, the utility model is realized through the following technical solutions:

[0006] A water intake system of an on-line water quality monitor includes a cylinder body, a sampling pump, and a return water tank. A cylindrical filter net and a spraying device are installed in the cylinder body. A sealing cover is installed at the top end of the filter net. A driving motor is installed at the center of the bottom end of the sealing cover. A rotating shaft is installed on the motor shaft of the driving motor, and a plurality of crushing blades are installed on the rotating shaft. The top of the cylinder body is connected to the water inlet of the sampling pump through a water inlet pipe equipped with an electric control valve. The water outlet of the sampling pump is connected to the water inlet of the on-line water quality monitor through a sampling pipe equipped with a sampling valve. The sampling pipe is connected to the inlet of the return water tank through a return pipe equipped with a return valve. The water outlet of the return water tank is connected to the spraying device through a flushing pipe equipped with a flushing valve and a flushing pump.

[0007] Wherein, the bottom end of the rotating shaft is conical, and the bottom end of the rotating shaft is lower than the bottom end of the cylinder.

[0008] Wherein, a plurality of the crushing blades are arranged on the rotating shaft in a spiral shape.

[0009] Wherein, the spraying device includes a spray main pipe fixedly connected to the side wall of the cylinder body, and at least two spray branch pipes arranged in an annular array. One end of the spray main pipe located outside the cylinder body is fixedly connected to the flushing pipe through an anti-flushing pipe nut. The spray branch pipes are respectively communicated with the spray main pipe, and a plurality of uniformly distributed spray heads are installed on one side of the spray branch pipes close to the filter net.

[0010] Wherein, a water outlet joint extending upward is arranged at the center of the top of the cylinder body, and the water outlet joint is fixedly connected to the water inlet pipe through a water inlet nut.

[0011] The beneficial effects of the present utility model are as follows: impurities are intercepted by the filter net, and larger impurities are crushed into smaller impurities by the crushing blades, effectively preventing the problem of impurity entanglement and blockage; when a large piece of film-like impurity is sucked, the protruding tip of the rotating shaft can pierce it, and the pierced impurity is sucked to the position of the crushing blades to be crushed. Description of the Drawings

[0012] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

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

[0014] Explanation of the reference numerals in the drawings: water inlet pipe 1, cylinder body 2, filter net 21, sealing cover 22, rotating shaft 23, crushing blade 24, driving motor 25, spraying device 26, water inlet nut 27, anti-flushing pipe nut 28, electric control valve 3, sampling pump 4, return pipe 5, return valve 6, return water tank 7, flushing valve 8, flushing pump 9, flushing pipe 10, sampling pipe 11, sampling valve 12. Detailed Embodiments

[0015] The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0016] As Figure 1As shown in the figure, a water intake system for an on-line water quality monitor includes a cylinder body 2, a sampling pump 4, and a return water tank 7. A cylindrical filter screen 21 and a spray device 26 are installed in the cylinder body 2. A sealing cover 22 is installed at the top end of the filter screen 21. A driving motor 25 is installed at the center of the bottom end of the sealing cover 22. A rotating shaft 23 is installed on the motor shaft of the driving motor 25. The bottom end of the rotating shaft 23 is conical and is lower than the bottom end of the cylinder 2.

[0017] A plurality of crushing blades 24 are installed on the rotating shaft 23, and the plurality of crushing blades 24 are arranged in a spiral shape on the rotating shaft 23.

[0018] The top of the cylinder body 2 is connected to the water inlet of the sampling pump 4 through a water inlet pipe 1 equipped with an electric control valve 3. The water outlet of the sampling pump 4 is connected to the water inlet of the on-line water quality monitor through a sampling pipe 11 equipped with a sampling valve 12.

[0019] The sampling pipe 11 is connected to the inlet of the return water tank 7 through a return pipe 5 equipped with a return valve 6. The water outlet of the return water tank 7 is connected to the spray device 26 through a flushing pipe 10 equipped with a flushing valve 8 and a flushing pump 9.

[0020] The spray device 26 includes a spray main pipe fixed on the side wall of the cylinder body, and at least two spray branch pipes arranged in an annular array. One end of the spray main pipe located outside the cylinder body is connected and fixed to the flushing pipe through an anti-washing pipe nut 28. The spray branch pipes are respectively connected to the spray main pipe, and a plurality of uniformly distributed spray heads are installed on the side of the spray branch pipes close to the filter screen.

[0021] A water outlet joint extending upward is provided at the center of the top of the cylinder body 2, and the water outlet joint is connected and fixed to the water inlet pipe 1 with a water inlet nut 27.

[0022] The filtering device is connected to the water inlet pipe and the flushing pipe through nuts. When the device is not used for a long time, the filtering device can be easily disassembled, or when the device fails, it is convenient to disassemble and repair, which further facilitates operation.

[0023] Working principle:

[0024] When the on-line water quality detector sends a signal to perform sampling, the driving motor starts first, driving the rotating shaft to rotate. The crushing blades on the rotating shaft break the impurities deposited in the filter screen, and at the same time drive the water flow to push the impurities in the filter screen downward.

[0025] Then, the electric control valve and the return valve are opened simultaneously. The sampling pump extracts the water sample to rinse the pipeline. After the water sample passes through the filter screen to filter out the impurities, it all flows back to the return water tank through the water inlet pipe and the return pipe. The rinsing water is stored in the return water tank and is used for backwashing. The rinsing time is controlled by the program built in the water quality detector.

[0026] After the rinsing is completed, close the reflux valve and at the same time open the sampling valve. The water sample enters the water quality monitor through the filter screen, the water inlet pipe, the sampling pump and the sampling pipe.

[0027] After the sampling is completed, close the sampling valve and open the reflux valve. The sampling pump continues to draw water samples to clean the pipeline, and the cleaning time is controlled by the program in the water quality monitor.

[0028] After the cleaning is completed, the electric control valve, the sampling pump and the reflux valve are closed at the same time, and the flushing valve and the flushing pump are opened at the same time. The flushing pump sends the water in the return water tank to the spraying device, and the spraying device sprays the water to spray and clean the filter screen.

[0029] Advantages: The impurities are intercepted by the filter screen, and the larger impurities are broken into smaller impurities by the crushing blades, effectively preventing the problem of impurity entanglement and blockage; when a large piece of film-like impurity is sucked, the protruding tip of the rotating shaft can easily pierce it, and the pierced impurity is sucked to the position of the crushing blade and broken.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A water intake system for an on-line water quality monitor, characterized in that: It includes a cylinder body, a sampling pump, and a return water tank. A cylindrical filter net and a spraying device are installed in the cylinder body. A sealing cover is installed at the top end of the filter net. A driving motor is installed at the center of the bottom end of the sealing cover. A rotating shaft is installed on the motor shaft of the driving motor. A plurality of crushing blades are installed on the rotating shaft. The top of the cylinder body is connected to the water inlet of the sampling pump through a water inlet pipe equipped with an electric control valve. The water outlet of the sampling pump is connected to the water inlet of the water quality online monitor through a sampling pipe equipped with a sampling valve. The sampling pipe is connected to the inlet of the return water tank through a return pipe equipped with a return valve. The water outlet of the return water tank is connected to the spraying device through a flushing pipe equipped with a flushing valve and a flushing pump.

2. The water intake system according to claim 1, characterized in that: The bottom end of the rotating shaft is conical, and the bottom end of the rotating shaft is lower than the bottom end of the cylinder.

3. The water intake system according to claim 1, characterized in that: The plurality of crushing blades are arranged in a spiral pattern on the rotating shaft.

4. The water intake system according to claim 1, characterized in that: The spraying device includes a spraying main pipe fixed on the side wall of the cylinder body and at least two spraying branch pipes arranged in an annular array. One end of the spraying main pipe located outside the cylinder body is connected and fixed to the flushing pipe through an anti-washing pipe nut. The spraying branch pipes are respectively connected to the spraying main pipe. A plurality of uniformly distributed spray heads are installed on the side of the spraying branch pipe close to the filter net.

5. The water intake system according to claim 1, characterized in that: A water outlet joint extending upward is provided at the center of the top of the cylinder body, and the water outlet joint is connected and fixed to the water inlet pipe with a water inlet nut.

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