Water quality monitoring equipment for direct drinking water pipeline

Abstract

The utility model relates to the technical field of water quality detection, in particular to water quality monitoring equipment for a direct drinking water pipeline. Comprising a mounting pipeline, a vertical pipe, a controller, a water quality detection device, a sealing mechanism, an electric push rod, a return pipe and a breather pipe, the vertical pipe is communicated with the mounting pipeline, a sealing cover plate is detachably mounted on the vertical pipe, and a mounting bracket is mounted on the sealing cover plate; the controller is mounted on the outer side of the sealing cover plate; the water quality detection device is mounted on the vertical pipe; the sealing mechanism comprises a first piston plate, a second piston plate and an elastic connecting assembly. Two ends of the return pipe are respectively communicated with the interiors of the mounting pipeline and the vertical pipe; a first one-way valve is mounted on the return pipe; the breather pipe penetrates through the first piston plate and is provided with a second one-way valve. According to the technical scheme, the water quality detection device can be prevented from being soaked in water for a long time, detection precision is fully guaranteed, and the service life of the water quality detection device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, and in particular to a water quality monitoring device for direct drinking water pipelines. Background Technology

[0002] Water is the source of life, and humans cannot live or produce without it. The quality of drinking water is closely related to human health. With socio-economic development, scientific progress, and improved living standards, people's requirements for drinking water quality are constantly increasing, and drinking water quality standards are correspondingly evolving and improving. Because the formulation of drinking water quality standards is related to various factors such as people's living habits, culture, economic conditions, the level of scientific and technological development, water resources, and their current quality status, there are differences in drinking water quality requirements not only between countries but also between different regions within the same country. Water quality testing devices are used to detect water quality conditions.

[0003] Patent CN209590012U discloses a water quality testing device for municipal water supply pipelines. A screw-on limiting sleeve is screwed onto the outside of the tee pipe at the testing position. An installation column is inserted through the middle of the screw-on limiting sleeve. Longitudinal connecting columns are fixedly installed on both sides of the end of the installation column near the municipal water supply pipeline. A buffer plate is fixedly installed on the top of the connecting column through a support frame. A crossbar is installed between the connecting columns. At least three sets of flow guide shuttle plates are sleeved on the outside of the crossbar. A water quality detector is also installed at the other end of the installation column.

[0004] The aforementioned patents still have the following technical defects: Since the instrument probe is installed inside the pipe, the instrument probe is in contact with the liquid for a long time. Over time, and if the water quality in the pipe is poor, dirt can easily adhere to the probe surface, thereby affecting the detection accuracy of the instrument. Furthermore, the long-term impact of water flow on the instrument will have an adverse effect on its service life. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a water quality monitoring device for direct drinking water pipelines.

[0006] The technical solution of this utility model is a direct drinking water pipeline water quality monitoring device, comprising:

[0007] Install pipes;

[0008] A vertical pipe is connected to the installation pipe. The upper end of the vertical pipe has an opening. A sealing cover plate is detachably installed on the vertical pipe, and an installation bracket is installed on the sealing cover plate.

[0009] The controller is installed on the outside of the sealing cover.

[0010] Water quality testing device installed on the vertical pipe;

[0011] The sealing mechanism includes a first piston plate, a second piston plate, and an elastic connecting assembly. The first piston plate and the second piston plate are both movably disposed inside the vertical pipe. A first sealing ring and a third sealing ring are respectively installed on the outer periphery of the first piston plate and the second piston plate. The elastic connecting assembly includes a guide rod, a spring, a limiting block, and a limiting ring. The guide rod moves through the sealing cover plate, the first piston plate, and the second piston plate from top to bottom. The spring is sleeved on the guide rod. The limiting block is connected to the bottom end of the guide rod. The limiting ring is disposed on the upper part of the guide rod.

[0012] An electric linear actuator is mounted on a mounting bracket and its output shaft is connected to the upper end of a guide rod.

[0013] The return pipe has two ends connected to the installation pipe and the interior of the riser, respectively, and a first check valve is installed on the return pipe.

[0014] A vent pipe passes through the first piston plate and is equipped with a second one-way valve. The vent pipe can move through the sealing cover plate.

[0015] Preferably, the water quality testing device includes a testing instrument mounting housing and a water quality testing instrument. The testing instrument mounting housing is connected to the inside of the vertical pipe, and the water quality testing instrument is mounted on the testing instrument mounting housing and electrically connected to the controller.

[0016] Preferably, a second connecting flange is provided on the outer side of the sealing cover, a third connecting flange is provided on the outer periphery of the vertical pipe, the third connecting flange and the second connecting flange are connected by multiple bolts and multiple nuts, and a fourth sealing ring is provided between the second connecting flange and the third connecting flange.

[0017] Preferably, the first check valve only allows liquid inside the riser to flow into the installation pipe.

[0018] Preferably, the second check valve only allows outside gas to flow into the interior of the riser.

[0019] Preferably, both the second piston plate and the first piston plate have through holes for the guide rod to pass through, and a fifth sealing ring is installed in both through holes.

[0020] Preferably, a first connecting flange is installed at both ends of the pipe.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects: the present invention can prevent the water quality testing device from being immersed in water for a long time, and only contact the water in the pipeline during testing. This can prevent the water quality testing device from being washed by high-speed water flow for a long time, and reduce the amount of dirt adhering to the probe surface, thereby ensuring the detection accuracy and extending the service life of the water quality testing device. Attached Figure Description

[0022] Figure 1 and Figure 2 All of these are schematic diagrams of the structure of this utility model.

[0023] Figure 3 This is a cross-sectional view of the present invention.

[0024] Reference numerals in the attached drawings: 1. Installation pipe; 2. Vertical pipe; 3. Sealing cover plate; 4. Mounting bracket; 5. Controller; 6. Electric push rod; 7. First piston plate; 8. Guide rod; 9. Spring; 10. Return pipe; 11. First check valve; 12. Vent pipe; 13. Second check valve; 14. Water quality analyzer; 15. Limiting block; 16. Second piston plate; 17. First sealing ring; 18. First connecting flange; 19. Second connecting flange; 20. Third connecting flange; 21. Analyzer mounting housing; 22. Third sealing ring; 23. Limiting ring. Detailed Implementation

[0025] Example 1

[0026] like Figures 1-3 As shown in the figure, the drinking water pipeline water quality monitoring equipment proposed in this embodiment includes an installation pipe 1, a riser pipe 2, a controller 5, a water quality detection device, a sealing mechanism, an electric push rod 6, a return pipe 10, and a vent pipe 12.

[0027] Both ends of the installation pipe 1 are equipped with first connecting flanges 18, and the installation pipe 1 is connected to the pipes on both sides through the first connecting flanges 18 at both ends.

[0028] The vertical pipe 2 is connected to the installation pipe 1. The upper end of the vertical pipe 2 has an opening. A sealing cover 3 is detachably installed on the vertical pipe 2. An installation bracket 4 is installed on the sealing cover 3. The controller 5 is installed on the outside of the sealing cover 3. The water quality detection device is installed on the vertical pipe 2.

[0029] The sealing mechanism includes a first piston plate 7, a second piston plate 16, and an elastic connecting assembly. The first piston plate 7 and the second piston plate 16 are both movably disposed inside the vertical pipe 2. A first sealing ring 17 and a third sealing ring 22 are respectively installed on the outer periphery of the first piston plate 7 and the second piston plate 16. The elastic connecting assembly includes a guide rod 8, a spring 9, a limiting block 15, and a limiting ring 23. The guide rod 8 moves sequentially from top to bottom through the sealing cover plate 3, the first piston plate 7, and the second piston plate 16. The spring 9 is sleeved on the guide rod 8 and is located between the first piston plate 7 and the second piston plate 16. The limiting block 15 is connected to the bottom end of the guide rod 8. The limiting ring 23 is located on the upper part of the guide rod 8 and is located at the upper end of the first piston plate 7. The second piston plate 16 and the first piston plate 7 are both provided with through holes for the guide rod 8 to pass through. A fifth sealing ring is installed in each of the two through holes. The electric push rod 6 is mounted on the mounting bracket 4 and its output shaft is connected to the upper end of the guide rod 8.

[0030] The two ends of the return pipe 10 are connected to the installation pipe 1 and the interior of the vertical pipe 2, respectively. A first check valve 11 is installed on the return pipe 10. The first check valve 11 only allows the liquid inside the vertical pipe 2 to flow into the installation pipe 1.

[0031] The vent pipe 12 passes through the first piston plate 7 and is fixedly connected to the first piston plate 7. A second one-way valve 13 is installed on the vent pipe 12. The second one-way valve 13 only allows external gas to flow into the interior of the vertical pipe 2. The vent pipe 12 movably passes through the sealing cover plate 3.

[0032] Specifically, controller 5 is a PLC controller or a microprocessor controller. Controller 5 is also equipped with a screen and control buttons, and a signal transceiver is installed on controller 5 to send signals to terminal devices.

[0033] The terminal device sends control commands to the controller 5, or the controller 5 is manually operated by pressing a button. The controller 5 controls the electric push rod 6 to drive the guide rod 8 to move downward, which in turn drives the limit ring 23 to move. The limit ring 23 is fixed on the guide rod 8, so that the limit ring 23 pushes the first piston plate 7 to move during the movement. The first piston plate 7 then pushes the spring 9 to move. Finally, the spring 9 pushes the second piston plate 16 to move downward until the water inside the installation pipe 1 is injected into the vertical pipe 2.

[0034] After a certain period of time, water fills the interior of the vertical pipe 2. The water quality is then tested using a water quality testing device. The water quality tester 14 feeds back the test data to the controller 5, which analyzes and processes the data before displaying it on its screen.

[0035] After the testing is completed, since the water inside the vertical pipe 2 is below the detection head of the water quality analyzer 14, the electric push rod 6 drives the guide rod 8 to move upward. When the second piston plate 16 moves into the vertical pipe 2, the water inside the installation pipe 1 stops flowing into the vertical pipe 2, thus sealing the bottom opening of the vertical pipe 2. When the first piston plate 7 moves to the upper limit position, it continues to drive the limiting ring 23 to move. The limiting ring 23 then drives the limiting block 15 to move upward. The limiting block 15 drives the second piston plate 16 to move upward. At this time, the spring 9 is compressed, and the liquid between the second piston plate 16 and the first piston plate 7 flows back into the installation pipe 1 through the return pipe 10. Finally, the second piston plate 16 is driven to return downward to the bottom position inside the vertical pipe 2. During the downward movement, the second piston plate 16 draws in external gas through the vent pipe 12 into the vertical pipe 2, so that the liquid level inside the vertical pipe 2 is below the water quality testing device, thus preventing the water quality testing device from being impacted by high-speed water flow and immersed in liquid for a long time, thereby extending the service life of the water quality testing device.

[0036] Example 2

[0037] like Figure 2 and Figure 3 As shown in the figure, the drinking water pipeline water quality monitoring device proposed in this embodiment, compared with the first embodiment, the water quality detection device in this embodiment includes a detector mounting housing 21 and a water quality detector 14. The detector mounting housing 21 is connected to the inside of the vertical pipe 2, and the water quality detector 14 is installed on the detector mounting housing 21 and electrically connected to the controller 5. Since the inner cavity of the detector mounting housing 21 protrudes outward from the vertical pipe 2, and since the detection end of the water quality detector 14 is placed inside the detector mounting housing 21, it is possible to prevent the high-speed water flow entering the vertical pipe 2 from directly impacting the water quality detector 14.

[0038] Example 3

[0039] like Figure 1 As shown in the figure, the drinking water pipeline water quality monitoring device proposed in this embodiment has the following features compared to Embodiment 1: a second connecting flange 19 is provided on the outer side of the sealing cover plate 3, and a third connecting flange 20 is provided on the outer periphery of the vertical pipe 2. The third connecting flange 20 and the second connecting flange 19 are connected by multiple bolts and multiple nuts, and a fourth sealing ring is provided between the second connecting flange 19 and the third connecting flange 20. The above structure allows operators to easily disassemble the vertical pipe 2 and the sealing cover plate 3, thereby facilitating equipment maintenance. It should be noted that the pipeline switch must be turned off when performing maintenance work.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A water quality monitoring device for direct drinking water pipelines, characterized in that, include: Install pipes (1); A vertical pipe (2) is connected to an installation pipe (1). The upper end of the vertical pipe (2) has an opening. A sealing cover plate (3) is detachably installed on the vertical pipe (2). An installation bracket (4) is installed on the sealing cover plate (3). Controller (5), which is installed on the outside of the sealing cover (3); A water quality testing device installed on the vertical pipe (2); The sealing mechanism includes a first piston plate (7), a second piston plate (16), and an elastic connecting assembly. The first piston plate (7) and the second piston plate (16) are movably disposed inside the vertical tube (2). The first sealing ring (17) and the third sealing ring (22) are respectively installed on the outer periphery of the first piston plate (7) and the second piston plate (16). The elastic connecting assembly includes a guide rod (8), a spring (9), a limiting block (15), and a limiting ring (23). The guide rod (8) moves through the sealing cover plate (3), the first piston plate (7), and the second piston plate (16) from top to bottom. The spring (9) is sleeved on the guide rod (8). The limiting block (15) is connected to the bottom end of the guide rod (8). The limiting ring (23) is disposed on the upper part of the guide rod (8). Electric push rod (6), the electric push rod (6) is mounted on the mounting bracket (4) and its output shaft is connected to the upper end of the guide rod (8); The return pipe (10) is connected to the installation pipe (1) and the vertical pipe (2) at both ends, and a first one-way valve (11) is installed on the return pipe (10). Vent pipe (12) passes through first piston plate (7), second one-way valve (13) is installed on vent pipe (12), and vent pipe (12) moves through sealing cover plate (3).

2. The direct drinking water pipeline water quality monitoring device according to claim 1, characterized in that, The water quality testing device includes a testing instrument mounting housing (21) and a water quality testing instrument (14). The testing instrument mounting housing (21) is connected to the inside of the vertical pipe (2). The water quality testing instrument (14) is mounted on the testing instrument mounting housing (21) and is electrically connected to the controller (5).

3. The direct drinking water pipeline water quality monitoring device according to claim 1, characterized in that, A second connecting flange (19) is provided on the outside of the sealing cover plate (3), and a third connecting flange (20) is provided on the outer periphery of the vertical pipe (2). The third connecting flange (20) and the second connecting flange (19) are connected by multiple bolts and multiple nuts. A fourth sealing ring is provided between the second connecting flange (19) and the third connecting flange (20).

4. The direct drinking water pipeline water quality monitoring device according to claim 1, characterized in that, The first check valve (11) only allows the liquid inside the vertical pipe (2) to flow into the installation pipe (1).

5. The direct drinking water pipeline water quality monitoring device according to claim 1, characterized in that, The second one-way valve (13) only allows external gas to flow into the interior of the vertical pipe (2).

6. The direct drinking water pipeline water quality monitoring device according to claim 1, characterized in that, Both the second piston plate (16) and the first piston plate (7) have through holes for the guide rod (8) to pass through, and a fifth sealing ring is installed in both through holes.

7. The direct drinking water pipeline water quality monitoring device according to claim 1, characterized in that, Both ends of the installation pipe (1) are equipped with first connecting flanges (18).

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