Multi-parameter water quality online monitor for sewage discharge

Abstract

The invention discloses a multi-parameter water quality on-line monitor for sewage discharge, which comprises a mounting plate, the upper end of the mounting plate is provided with a liquid pump, the input end of the liquid pump is connected with a mixing assembly for mixing sewage samples, the end part of the mixing assembly is provided with a sampling assembly, the output end of the liquid pump is connected with a drain pipe, and the drain pipe is connected with a water outlet. A detection part is arranged on the pipe wall of the drainage pipe; the water quality monitoring device is simple in structure and reasonable in design, multi-point and multi-depth flexible sampling in a sewage pool is realized by utilizing the design of a plurality of adjustable sampling arms, the accuracy and the reliability of water quality monitoring are greatly improved by increasing the sample capacity, and compared with a traditional monitor, the water quality information in the sewage pool can be more comprehensively captured, so that the water quality monitoring effect is improved. The one-sidedness of a result caused by monitoring at a single position is effectively avoided, a powerful basis is provided for water quality evaluation and management, and meanwhile, the effect that multiple sewage samples are fully filtered and mixed and then are subjected to water quality monitoring is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection equipment, and specifically relates to an on-line multi-parameter water quality monitor for sewage discharge. Background Technique

[0002] With the enhancement of environmental protection awareness and the improvement of water resource management requirements, the monitoring of sewage discharge water quality has become an important link in the field of environmental protection. The components in sewage are complex and variable, which puts higher requirements on water quality monitoring. In order to ensure that sewage discharge meets the standards and protect the water resource environment, water quality monitoring technologies are constantly developing to achieve accurate and comprehensive monitoring.

[0003] The traditional devices have the following deficiencies: At present, most traditional sewage discharge water quality monitors use a single sampling point for monitoring. These monitors are usually fixed at specific positions, and the sampling depth is also relatively fixed. Due to the components in sewage being affected by various factors, such as sources, treatment processes, etc., the monitoring results at a single position often cannot accurately reflect the overall water quality. Therefore, problems such as limited sampling ability and insufficient sample volume have led to doubts about the reliability and accuracy of the monitoring results of common sewage discharge water quality monitors at present. It is difficult to meet the actual monitoring needs during the current sewage discharge process. Summary of the Invention

[0004] The purpose of the present invention is to provide an on-line multi-parameter water quality monitor for sewage discharge to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An on-line multi-parameter water quality monitor for sewage discharge, including a mounting plate, a liquid pump is arranged at the upper end of the mounting plate, an input end of the liquid pump is connected to a mixing component for mixing sewage samples, a sampling component is arranged at an end of the mixing component, an output end of the liquid pump is connected to a drain pipe, and a detection part is arranged on a pipe wall of the drain pipe; The sampling component includes: A positioning seat, the positioning seat is arranged below the end of the mixing component, and a gland is threadedly connected to the outside of the positioning seat; An adjusting pipe, one end of the adjusting pipe is movably connected to an end of the gland through a convex ring arranged, the other end of the adjusting pipe is movably provided with an inner sleeve, and one end of the inner sleeve away from the adjusting pipe is movably connected to an outer sleeve; A rotating component, the rotating component is movably arranged at both ends of the inner sleeve, and both the adjusting pipe and the outer sleeve are rotationally connected to the inner sleeve through the rotating component; A liquid extraction hose, an inlet end of the liquid extraction hose is arranged at an end of the outer sleeve, and an outlet end of the liquid extraction hose penetrates through the outer sleeve, the inner sleeve and the adjusting pipe and is connected to the positioning seat.

[0006] Preferably, the mixing component includes: A mixing tube connected to the input end of the liquid pump. Positioning pieces are provided on both sides inside the mixing tube, and a spiral mixer is horizontally connected between the positioning pieces; A connecting cover is provided at the end of the mixing tube. The lower side of the connecting cover is arc-shaped, and the positioning seat is provided on the arc surface of the connecting cover; A filter plate is movably arranged in a slot at one end of the mixing tube for filtering solid impurities in the sewage sample.

[0007] Preferably, the detection part includes: A through hole is vertically opened on one side of the pipe wall of the drain pipe. A base is provided on the pipe wall of the drain pipe outside the through hole, and a number of threaded holes corresponding to the through hole are opened on the base; An installation pipe is threadedly connected in the threaded hole and its end is located inside the drain pipe. The installation pipe is used for installing a sensor for monitoring water quality.

[0008] Preferably, the rotating component includes: An adjusting shaft is rotatably connected to both ends of the inner sleeve. The ends of the adjusting pipe and the outer sleeve are rotatably connected to the adjusting shaft through holes opened; A pressure ring is movably arranged in a chute on the inner wall of the inner sleeve at one end of the adjusting shaft. The pressure ring is threadedly connected to the adjusting shaft; A toothed disc is arranged on the inner wall of the inner sleeve outside the adjusting shaft. Tooth grooves matching the toothed disc are opened at the ends of the adjusting pipe and the outer sleeve.

[0009] Preferably, the end of the adjusting shaft is provided with an internal hexagonal groove.

[0010] Preferably, drainage holes are opened on both the inner sleeve and the outer sleeve.

[0011] Preferably, a number of plugs for blocking are also provided in the threaded holes.

[0012] Compared with the prior art, the beneficial effects of the present invention are: By setting a sampling component, with the design of multiple adjustable sampling arms, the present invention realizes flexible sampling at multiple points and multiple depths in the sewage pool. The increase in the sample volume greatly improves the accuracy and reliability of water quality monitoring. Compared with traditional monitors, it can capture the water quality information in the sewage pool more comprehensively, effectively avoiding the one-sidedness of the results brought by single-position monitoring, and providing a strong basis for water quality assessment and management; The present invention realizes the effect of fully filtering and mixing multiple sewage samples before water quality monitoring by setting up a mixing component, avoiding the interference of solid impurities on the measurement performance of optical sensors and the interference in the calculation of other water quality parameters. At the same time, the full mixing with the spiral mixer further improves the accuracy and reliability of the monitoring results; The present invention enables the sensor acquisition end to smoothly collect and monitor data on the sample by setting up a detection unit, and installing the base on the vertical section of the drain pipe can ensure that the acquisition end of the sensor is always immersed in the sample without air intrusion, and the data reading is accurate; The present invention realizes the adjustment and locking of the angle between the adjusting pipe and the outer sleeve and the inner sleeve by setting up a rotating component, which is simple and convenient to operate, and improves the flexibility of the monitor in selecting the sampling point and depth. Brief Description of the Drawings

[0013] Figure 1 is the overall front view of the present invention; Figure 2 is the front view schematic diagram of the internal structure of the present invention; Figure 3 of the present invention Figure 2 is the enlarged schematic diagram at A; Figure 4 is the side view schematic diagram of the internal structure of the present invention; Figure 5 of the present invention Figure 4 is the enlarged schematic diagram at B; Figure 6 of the present invention Figure 4 is the enlarged schematic diagram at C.

[0014] In the figure: 1. mounting plate; 2. liquid pump; 3. mixing component; 301. mixing pipe; 302. positioning piece; 303. spiral mixer; 304. connecting cover; 305. filter plate; 4. sampling component; 401. positioning seat; 402. gland; 403. adjusting pipe; 404. inner sleeve; 405. outer sleeve; 406. rotating component; 4061. adjusting shaft; 4062. pressing ring; 4063. gear disc; 407. liquid extraction hose; 5. drain pipe; 6. detection unit; 601. through hole; 602. base; 603. threaded hole; 604. mounting pipe; 605. plug; 7. drain hole. Detailed Embodiments

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0016] It should be noted that when an element is referred to as "fixed", "mounted", "connected" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation in the specification, and thus should not be construed as a limitation to the present invention.

[0017] As a further improvement of the present invention, terms such as "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0018] Please refer to Figures 1-6 As shown, the present invention provides a technical solution for an on-line multi-parameter water quality monitor for sewage discharge: an on-line multi-parameter water quality monitor for sewage discharge, including a mounting plate 1, a liquid pump 2 is fixedly installed at the upper end of the mounting plate 1, an input end of the liquid pump 2 is connected with a mixing assembly 3 for mixing sewage samples, a sampling assembly 4 is installed at an end of the mixing assembly 3, an output end of the liquid pump 2 is connected with a drain pipe 5, and a detection part 6 is installed on a pipe wall of the drain pipe 5. The sampling assembly 4 includes a positioning seat 401, an adjusting pipe 403, a rotating assembly 406 and a liquid extraction hose 407. The positioning seat 401 is fixedly installed on the lower side of the end of the mixing assembly 3, and a gland 402 is threadedly connected to the outside of the positioning seat 401. One end of the adjusting pipe 403 is movably connected to an end of the gland 402 through a mounting collar, and the other end of the adjusting pipe 403 is rotatably connected to an inner sleeve 404. One end of the inner sleeve 404 away from the adjusting pipe 403 is movably connected to an outer sleeve 405. The rotating assembly 406 is movably installed at both ends of the inner sleeve 404, and both the adjusting pipe 403 and the outer sleeve 405 are rotatably connected to the inner sleeve 404 through the rotating assembly 406. An inlet end of the liquid extraction hose 407 is installed at an end of the outer sleeve 405, and an outlet end of the liquid extraction hose 407 penetrates through the outer sleeve 405, the inner sleeve 404 and the adjusting pipe 403 and is connected to the positioning seat 401.

[0019] The length of the liquid extraction hose 407 is greater than the sum of the lengths of the positioning seat 401, the adjusting pipe 403, the inner sleeve 404 and the outer sleeve 405, and the liquid extraction hose 407 is bent and laid inside the inner sleeve 404 and the outer sleeve 405 to form a length redundancy for easy rotation.

[0020] When the device needs to take a sample, first rotate the gland 402 to loosen the adjusting pipe 403 from the positioning seat 401. Then, with the axes of the positioning seat 401 and the adjusting pipe 403 as the center of the circle, rotate the inner sleeve 404 to adjust the angle between the positioning seat 401 and the adjusting pipe 403. Note that the rotation angle is plus or minus 180 degrees to avoid entanglement between the liquid taking hose 407 and the rotating assembly 406. After the adjustment is completed, rotate the gland 402 in the reverse direction to make the ends of the adjusting pipe 403 and the positioning seat 401 tightly abutted, and the positioning at this place can be restored. Subsequently, through the rotating assembly 406, adjust the angles between the inner sleeve 404 and the adjusting pipe 403, and between the inner sleeve 404 and the outer sleeve 405 respectively. By adjusting the relative positions and angles of the inner sleeve 404, the outer sleeve 405 and the adjusting pipe 403, the distance from the port of the liquid taking hose 407 to the mixing assembly 3 is adjusted. Finally, fix the mounting plate 1 on both sides of the water tank so that the monitor is located above the sewage liquid level. At this time, start the liquid pump 2 to start sampling.

[0021] Through the sampling assembly 4, with the design of multiple adjustable sampling arms, flexible sampling at multiple points and multiple depths in the sewage tank is realized. The increase in the sample volume greatly improves the accuracy and reliability of water quality monitoring. Compared with traditional monitors, it can capture the water quality information in the sewage tank more comprehensively, effectively avoiding the one-sidedness of the results brought by single-position monitoring, and providing a strong basis for water quality assessment and management.

[0022] The mixing assembly 3 includes a mixing pipe 301, a connecting cover 304 and a filter plate 305. The mixing pipe 301 is connected to the input end of the liquid pump 2. On both sides inside the mixing pipe 301, positioning pieces 302 are fixedly installed. The positioning pieces 302 include a number of liquid discharge holes for sample circulation. A spiral mixer 303 is horizontally connected between the positioning pieces 302. The connecting cover 304 is installed at the end of the mixing pipe 301. The lower side of the connecting cover 304 is arc-shaped. The positioning seat 401 is fixedly installed on the arc surface of the connecting cover 304. The liquid outlet end of the liquid taking hose 407 passes through the positioning seat 401 and extends into the connecting cover 304. The filter plate 305 is movably installed in the slot at one end of the mixing pipe 301 to filter solid impurities in the sewage sample. A sealing strip is provided between the filter plate 305 and the slot opening to ensure the sealing performance inside the mixing pipe 301 and the connecting cover 304.

[0023] When the liquid pump 2 is turned on, negative pressure is generated inside the mixing pipe 301 and the connecting cover 304. Sewage is sucked from the end of the liquid taking hose 407 and enters the connecting cover 304. Then, after passing through the filtration of the filter plate 305, it enters the spiral mixer 303. The sewage is further evenly mixed during the movement in the spiral mixer 303. Finally, it passes through the liquid pump 2, fills the drain pipe 5 and is discharged upward. The water quality is real-time monitored by the sensor installed on the detection part 6 of the drain pipe 5.

[0024] Through the mixing component 3, the effect of fully filtering and mixing multiple sewage samples before water quality monitoring is achieved, avoiding the interference of solid impurities on the measurement performance of optical sensors and the interference of other water quality parameter calculations. At the same time, the full mixing in cooperation with the spiral mixer 303 further improves the accuracy and reliability of the monitoring results.

[0025] The detection part 6 includes a through hole 601 and a mounting pipe 604. The through hole 601 is vertically opened on one side of the pipe wall of the drain pipe 5. A base 602 is installed on the pipe wall of the drain pipe 5 outside the through hole 601, and a number of threaded holes 603 corresponding to the through hole 601 are opened on the base 602. The mounting pipe 604 is threadedly connected in the threaded hole 603 and the end part is located inside the drain pipe 5. In the actual application process, the mounting pipe 604 is used to install the sensor for monitoring water quality. When the sewage flows through the reading area at the end of the mounting pipe 604, the internal sensor performs real-time monitoring and reads data. Since the drain pipe 5 is vertically installed and the detection part 6 is located in the vertical section of the drain pipe 5, the end part of the mounting pipe 604 can always be immersed in the sample.

[0026] Through the detection part 6, the sensor acquisition end can smoothly collect and monitor data from the sample, and installing the base 602 in the vertical section of the drain pipe 5 can ensure that the acquisition end of the sensor is always immersed in the sample, without air intrusion, and the data reading is accurate.

[0027] The rotating component 406 includes: An adjusting shaft 4061, the adjusting shaft 4061 is rotatably connected to both ends of the inner sleeve 404, and the ends of the adjusting pipe 403 and the outer sleeve 405 are rotatably connected to the adjusting shaft 4061 through holes opened; A pressure ring 4062, the pressure ring 4062 is slidably connected in the chute on the inner wall of the inner sleeve 404 at one end of the adjusting shaft 4061, the pressure ring 4062 is threadedly connected to the adjusting shaft 4061, and by rotating the adjusting shaft 4061, the position of the pressure ring 4062 can be adjusted, thereby adjusting the pressure exerted by the pressure ring 4062 on the adjusting pipe 403 and the outer sleeve 405; A gear disk 4063, the gear disk 4063 is installed on the inner walls at both ends of the inner sleeve 404 outside the adjusting shaft 4061, and tooth grooves matching the gear disk 4063 are opened at the ends of the adjusting pipe 403 and the outer sleeve 405.

[0028] When it is necessary to adjust the angle between the inner sleeve 404 and the outer sleeve 405 and the adjustment tube 403, first rotate the adjustment shaft 4061 to retract the pressure ring 4062 into the chute of the inner sleeve 404, so as not to apply pressure to the adjustment tube 403 and the outer sleeve 405. The tooth discs 4063 at both ends of the inner sleeve 404 are separated from the tooth grooves at the ends of the adjustment tube 403 and the outer sleeve 405. At this time, the adjustment tube 403 and the outer sleeve 405 can rotate around the inner sleeve 404 with the adjustment shaft 4061 as the axis. When rotated to the appropriate angle, rotate the adjustment shaft 4061 in the reverse direction so that the pressure ring 4062 presses against the adjustment tube 403 and the outer sleeve 405 again until the tooth disc 4063 is embedded in the tooth grooves at the ends of the adjustment tube 403 and the outer sleeve 405 again. At this time, both the adjustment tube 403 and the outer sleeve 405 are positioned with the inner sleeve 404.

[0029] By rotating the assembly 406, the adjustment and locking of the included angle between the adjustment tube 403 and the outer sleeve 405 and the inner sleeve 404 are realized. The operation is simple and convenient, and the flexibility of the monitor to select the sampling point and depth is improved.

[0030] The end of the adjustment shaft 4061 is provided with an internal hexagonal groove, which can facilitate the user to rotate and adjust the adjustment shaft 4061 by using a hexagonal wrench.

[0031] Drain holes 7 are provided on both the inner sleeve 404 and the outer sleeve 405. Since the inner sleeve 404 and the outer sleeve 405 adopt a non-sealed design, the drain holes 7 can facilitate the rapid discharge of the residual wastewater from the inner sleeve 404 and the outer sleeve 405 after the monitor leaves the sewage pool.

[0032] A number of plugs 605 for plugging are also threadedly connected in the threaded holes 603. Due to different monitoring requirements, not every threaded hole 603 has an installation tube 604. At this time, the idle threaded holes 603 can be plugged by the plugs 605 to prevent sewage from overflowing therefrom.

[0033] Working principle: When the device needs to take a sample, first rotate the gland 402 to loosen the adjusting pipe 403 from the positioning seat 401. Then, with the axes of the positioning seat 401 and the adjusting pipe 403 as the center of the circle, rotate the inner sleeve 404 to adjust the angle between the positioning seat 401 and the adjusting pipe 403. After the adjustment is completed, rotate the gland 402 in the reverse direction so that the ends of the adjusting pipe 403 and the positioning seat 401 are tightly pressed against each other to restore the positioning at this place. Then rotate the adjusting shaft 4061 to adjust the angles between the inner sleeve 404 and the adjusting pipe 403, and between the inner sleeve 404 and the outer sleeve 405 respectively. Thus, the purpose of adjusting the sampling point and depth is achieved. Finally, fix the mounting plate 1 on both sides of the water tank so that the monitor is located above the sewage liquid level. At this time, start the liquid pump 2, a negative pressure is generated in the mixing pipe 301 and the connecting cover 304, and the sewage is sucked in from the end of the liquid sampling hose 407 and enters the connecting cover 304. Then, after passing through the filter plate 305, it enters the spiral mixer 303. During the movement of the sewage in the spiral mixer 303, it is further evenly mixed. Finally, it passes through the liquid pump 2, fills the drain pipe 5 and is discharged upward. The data reading area of the installation pipe 604 is submerged by the sample sewage, and real-time monitoring and data collection can be carried out.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-parameter water quality online monitoring instrument for sewage discharge, comprising a mounting plate (1), characterized in that: A liquid pump (2) is arranged at the upper end of the mounting plate (1); an input end of the liquid pump (2) is connected to a mixing assembly (3) for mixing sewage samples; an end of the mixing assembly (3) is provided with a sampling assembly (4); an output end of the liquid pump (2) is connected to a drainage pipe (5); a detection unit (6) is arranged on the pipe wall of the drainage pipe (5); The sampling component (4) comprises: A positioning seat (401), the positioning seat (401) being arranged at the lower side of the end of the mixing assembly (3), the outer side of the positioning seat (401) being threadedly connected to a gland (402); An adjusting tube (403), one end of the adjusting tube (403) being movably connected to the end of the gland (402) by means of a convex ring, the other end of the adjusting tube (403) being movably provided with an inner sleeve (404), and one end of the inner sleeve (404) being away from the adjusting tube (403) being movably connected to an outer sleeve (405); A rotating assembly (406), wherein the rotating assembly (406) is movably disposed at both ends of the inner sleeve (404), and the adjusting tube (403) and the outer sleeve (405) are both rotatably connected to the inner sleeve (404) via the rotating assembly (406); A liquid collection hose (407), wherein the liquid inlet end of the liquid collection hose (407) is arranged at the end of the outer sleeve (405), and the liquid outlet end of the liquid collection hose (407) passes through the outer sleeve (405), the inner sleeve (404) and the regulating tube (403) to be connected to the positioning seat (401).

2. The multi-parameter water quality online monitor for sewage discharge according to claim 1, characterized in that: The mixing component (3) comprises: A mixing tube (301), the mixing tube (301) being connected to the input end of the liquid pump (2), positioning plates (302) being provided on both sides of the interior of the mixing tube (301), and a spiral mixer (303) being horizontally connected between the positioning plates (302); A connecting cover (304), the connecting cover (304) being arranged at the end of the mixing tube (301), the lower side of the connecting cover (304) being arc-shaped, and the positioning seat (401) being arranged on the arc surface of the connecting cover (304); A filter plate (305) is movably disposed in a slot at one end of the mixing tube (301) and is used to filter solid impurities in the sewage sample.

3. The multi-parameter water quality online monitor for sewage discharge according to claim 1, characterized in that: The detection unit (6) comprises: A through hole (601), the through hole (601) being vertically opened on one side of the drain pipe (5), a base (602) being arranged on the wall of the drain pipe (5) outside the through hole (601), the base (602) being provided with a plurality of threaded holes (603) corresponding to the through hole (601); A mounting tube (604) is threadedly connected in the threaded hole (603) and an end portion is located inside the drain pipe (5). The mounting tube (604) is used to install a sensor for monitoring water quality.

4. The multi-parameter water quality online monitor for sewage discharge according to claim 1, characterized in that: The rotating assembly (406) comprises: An adjusting shaft (4061), the adjusting shaft (4061) being rotatably connected to the two ends of the inner sleeve (404), and the ends of the adjusting tube (403) and the outer sleeve (405) being rotatably connected to the adjusting shaft (4061) by opening holes; A pressing ring (4062), the pressing ring (4062) being movably arranged in a sliding groove on the inner wall of the inner sleeve (404) at one end of the adjusting shaft (4061), the pressing ring (4062) being threadedly connected to the adjusting shaft (4061); A toothed disc (4063) is arranged on the inner wall of the inner sleeve (404) and is located outside the adjustment shaft (4061). The ends of the adjustment tube (403) and the outer sleeve (405) are both provided with tooth grooves matching the toothed disc (4063).

5. The multi-parameter water quality online monitor for sewage discharge according to claim 4, characterized in that: The end of the adjusting shaft (4061) is provided with a hexagonal socket.

6. The multi-parameter water quality online monitor for sewage discharge according to claim 1, characterized in that: The inner sleeve (404) and the outer sleeve (405) are both provided with drainage holes (7).

7. The multi-parameter water quality online monitor for sewage discharge according to claim 3, characterized in that: A plurality of plugs (605) for sealing are also arranged in the threaded hole (603).

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