Anti-turbidity purifying and filtering device for total nitrogen water quality on-line monitor

Abstract

The utility model discloses a purifying and filtering device for turbidity resistance of a total nitrogen water quality on-line monitor, which comprises a shell, a shell cover which is in threaded assembly at the opening position of the top end of the shell, and an ammonia nitrogen sensor which is detachably mounted at the central axis position in the shell cover, and a filter basket which is used for surrounding the ammonia nitrogen sensor is mounted at one end in the shell. A liquid discharge pipe is integrally formed at the bottom end of the shell below the filter basket, and a switch valve is mounted at the bottom end of the liquid discharge pipe. According to the utility model, the ammonia nitrogen sensor is arranged in the shell, sewage in the treatment tank enters the shell through the inclined liquid inlet filter pipe fitting and is in contact with the ammonia nitrogen sensor, and the ammonia nitrogen sensor is prevented from being in direct contact with a water body in aeration and dosing processes through the shell; and the water body still enters the shell through the inclined liquid inlet filtering pipe fitting and is detected by the ammonia nitrogen sensor, so that the displacement offset of the ammonia nitrogen sensor in the treatment tank is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water quality sensor accessories technology, specifically a purification and filtration device for turbidity resistance in an online total nitrogen water quality monitor. Background Technology

[0002] The ammonia nitrogen sensor in the total nitrogen water quality online monitoring instrument plays a crucial role in the wastewater treatment process. Its main function is to monitor the concentration of ammonia nitrogen in the wastewater treatment pond in real time. Ammonia nitrogen is one of the main forms of nitrogen in water bodies, primarily originating from domestic and industrial wastewater. Changes in its concentration directly affect water quality and the ecological environment. Through real-time monitoring by the ammonia nitrogen sensor, wastewater treatment plants can obtain accurate data in a timely manner, which is essential for timely detection of water quality changes and ensuring treatment effectiveness. This sensor not only provides data feedback to help staff fully understand the water quality status but also optimizes the treatment process, improves treatment efficiency, and reduces operating costs. In practical use, the ammonia nitrogen sensor needs to be submerged in the wastewater treatment pond. The installation location should be chosen where water flows smoothly and is not obstructed by debris. The sensor probe should be completely submerged in water to ensure accurate measurement. After installation, it needs to be connected to the power supply and data acquisition system and calibrated to ensure data accuracy. After normal operation, the monitor will periodically collect ammonia nitrogen data and upload it to the monitoring system. Operators can view changes in ammonia nitrogen concentration in real time, analyze data trends, and formulate corresponding treatment measures.

[0003] However, ammonia nitrogen sensors in wastewater tanks experience significant positional shifts due to aeration, chemical dosing, and other processes, and may collide with impurities in the wastewater. Specifically, the air bubbles generated during aeration and chemical dosing disturb the water flow, and the addition of chemicals increases suspended solids in the water, leading to uneven water flow. This flow change causes the ammonia nitrogen sensor to shift in position in the water, especially in areas with strong currents, where the sensor may be impacted or pushed. At this time, solid particles, sediments, and impurities in the wastewater can cause wear or impact to the sensor probe, thus affecting its normal operation. Utility Model Content

[0004] The purpose of this invention is to provide a purification and filtration device for turbidity resistance in an online total nitrogen water quality monitor. An ammonia nitrogen sensor is installed in the housing. Wastewater in the treatment tank enters the housing through an inclined inlet filter pipe and comes into contact with the ammonia nitrogen sensor. At this time, the ammonia nitrogen sensor detects the total amount of ammonia nitrogen in the water, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a purification and filtration device for turbidity resistance in an online total nitrogen water quality monitor, comprising a housing, a shell cover threaded at the opening at the top of the housing, and an ammonia nitrogen sensor detachably installed at the central axis position inside the shell cover. A filter basket for surrounding the ammonia nitrogen sensor is installed at one end inside the housing. A drain pipe is integrally formed at the bottom end of the housing below the filter basket, and a switch valve is installed at the bottom end of the drain pipe. An inclined inlet filter pipe is installed on one side of the outer wall of the housing.

[0006] Preferably, an upwardly extending annular protrusion is integrally formed at the center of the top of the shell cover, and a tightening handle for pressing against the outer wall of the ammonia nitrogen sensor is installed on both the front and rear outer walls of the annular protrusion.

[0007] Preferably, a rubber stopper is installed at the top end of the annular convex tube.

[0008] Preferably, a front filter plate and a rear filter plate are respectively installed at both ends inside the inclined liquid inlet filter fitting, and a stainless steel filter screen is installed inside the inclined liquid inlet filter fitting on the side of the rear filter plate away from the front filter plate.

[0009] Preferably, a sand core is installed inside the inclined liquid inlet filter pipe between the front filter disc and the rear filter disc.

[0010] Preferably, one end of the inner surface of the outer shell is integrally formed with an annular flange, and one end of the surface of the filter basket is integrally formed with an annular retaining edge for overlapping with the annular flange.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This online total nitrogen water quality monitoring instrument with turbidity-resistant purification and filtration device, through a structure consisting of a shell, an inclined inlet filter pipe, a filter basket, a drain pipe, and a switching valve, allows the ammonia nitrogen sensor to be installed inside the shell. Wastewater from the treatment tank enters the shell through the inclined inlet filter pipe and comes into contact with the ammonia nitrogen sensor. The shell prevents the ammonia nitrogen sensor from directly contacting the water during aeration and dosing processes, while the water still enters the shell through the inclined inlet filter pipe and is detected by the ammonia nitrogen sensor, thus reducing the risk of ammonia nitrogen sensor malfunction. The displacement offset in the treatment tank; where the ammonia nitrogen sensor is installed in the housing, it can effectively protect the sensor from direct impact, reduce the risk of physical damage, and the ammonia nitrogen sensor works in a relatively stable environment. At this time, the contact between the ammonia nitrogen sensor and the external water body is through the inclined liquid inlet filter fitting, avoiding the influence of water flow instability on the sensor measurement. In addition, the water flow inside the housing is relatively uniform, thereby improving the accuracy of the ammonia nitrogen sensor in detecting ammonia nitrogen concentration, enabling the sensor to better reflect the overall ammonia nitrogen change in the treatment tank and provide more reliable data support. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 4 This is a three-dimensional cross-sectional structural diagram of the present invention.

[0016] In the diagram: 1. Outer shell; 2. Drain pipe; 3. Switch valve; 4. Inclined inlet filter fitting; 401. Front filter disc; 402. Rear filter disc; 403. Stainless steel filter screen; 404. Sand core; 5. Shell cover; 6. Annular convex tube; 601. Rubber stopper; 7. Tightening handle; 8. Ammonia nitrogen sensor; 9. Filter basket. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-4 An embodiment of this utility model is provided: a purification and filtration device for turbidity resistance of a total nitrogen water quality online monitoring instrument, including a shell 1, a shell cover 5 threadedly assembled at the top opening of the shell 1, and an ammonia nitrogen sensor 8 detachably installed at the central axis position inside the shell cover 5. A filter basket 9 for surrounding the ammonia nitrogen sensor 8 is installed at one end inside the shell 1. A drain pipe 2 is integrally formed at the bottom end of the shell 1 below the filter basket 9, and a switch valve 3 is installed at the bottom end of the drain pipe 2. An inclined liquid inlet filter pipe 4 is installed on one side of the outer wall of the shell 1.

[0019] An annular protrusion 6 extending upward is integrally formed at the center of the top of the cover 5. Tightening handles 7 for pressing against the outer wall of the ammonia nitrogen sensor 8 are installed on the front and rear outer walls of the annular protrusion 6. A rubber plug 601 is installed at the top of the annular protrusion 6. After the ammonia nitrogen sensor 8 is installed into the housing 1, the operator manually screws the tightening handles 7, thereby using the two tightening handles 7 to firmly install the ammonia nitrogen sensor 8 in the central axis area of ​​the housing 1, ensuring the stability of the ammonia nitrogen sensor 8 during operation.

[0020] The inclined liquid inlet filter pipe 4 has a front filter plate 401 and a rear filter plate 402 installed at both ends. The side of the rear filter plate 402 away from the front filter plate 401 has a stainless steel filter screen 403 installed inside the inclined liquid inlet filter pipe 4. When sewage is introduced into the outer shell 1 through the inclined liquid inlet filter pipe 4, the sewage passes through the front filter plate 401, the rear filter plate 402 and the stainless steel filter screen 403 in sequence. The three-layer filtration method blocks large solid impurities in the sewage from entering the outer shell 1, thereby ensuring that the liquid path inside the outer shell 1 is unobstructed.

[0021] A sand core 404 is installed inside the inclined liquid inlet filter pipe 4 between the front filter plate 401 and the rear filter plate 402. The sand core 404 between the front filter plate 401 and the rear filter plate 402 performs fine filtration, thereby initially filtering out turbidity particles in the total nitrogen water sample.

[0022] One end of the inner shell 1 has an integrally formed annular flange, and one end of the surface of the filter basket 9 has an integrally formed annular retaining edge for overlapping with the annular flange. The operator manually screws the shell cover 5 upward to separate the shell cover 5 from the outer shell 1. At this time, the filter basket 9 can be lifted out of the outer shell 1 for cleaning and maintenance, and the ammonia nitrogen sensor 8 can also be quickly removed for calibration.

[0023] In this embodiment, during use, the operator first checks the integrity of the outer casing 1 to ensure there are no cracks or damage. Then, the outer casing 1 is fixed to the appropriate location on the wastewater treatment tank wall or support using clamps, bolts, or other connectors. The installation location is usually in a relatively stable water flow area to reduce impact on the outer casing 1 and the ammonia nitrogen sensor 8. Next, the ammonia nitrogen sensor 8 is installed into the outer casing 1, and the tightening handle 7 is used to securely install the ammonia nitrogen sensor 8 in the outer casing 1. After stable installation, the power and data cables of the ammonia nitrogen sensor 8 are connected to the interface of the total nitrogen water quality online monitoring instrument to ensure normal signal transmission. When the ammonia nitrogen sensor 8 is working, the inclined inlet filter pipe 4 guides the wastewater in the treatment tank into the outer casing 1, while simultaneously preventing the water flow from affecting the ammonia nitrogen sensor. The sensor 8 is directly impacted, while the filter basket 9 is located outside the ammonia nitrogen sensor 8, thereby further reducing the water flow rate and protecting the ammonia nitrogen sensor 8; the operator opens the switch valve 3 to a certain degree, which connects the outer casing 1 to the sewage tank, allowing the sewage in the outer casing 1 to be discharged; since the ammonia nitrogen sensor 8 is immersed in the outer casing 1 containing sewage, the ammonia nitrogen sensor 8 monitors the ammonia nitrogen content in the water and compares it with the standard value, and the collected ammonia nitrogen content signal is transmitted to the total nitrogen water quality online monitor; during normal operation, the operator needs to regularly maintain and inspect the ammonia nitrogen sensor 8 and its related components, such as regularly cleaning the filter basket 9, checking whether the drain pipe 2 and the switch valve 3 are unobstructed, and ensuring that the water flow in the outer casing 1 is smooth.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A purification and filtration device for turbidity resistance in an online total nitrogen water quality monitor, characterized in that: The device includes an outer shell (1), a shell cover (5) threaded at the top opening of the outer shell (1), and an ammonia nitrogen sensor (8) that can be detachably installed at the central axis of the inner part of the shell cover (5). A filter basket (9) for surrounding the ammonia nitrogen sensor (8) is installed at one end inside the outer shell (1). A drain pipe (2) is integrally formed at the bottom of the outer shell (1) below the filter basket (9), and a switch valve (3) is installed at the bottom of the drain pipe (2). An inclined inlet filter pipe (4) is installed on one side of the outer wall of the outer shell (1).

2. The purification and filtration device for turbidity resistance in an online total nitrogen water quality monitoring instrument according to claim 1, characterized in that: An upwardly extending annular protrusion (6) is integrally formed at the center of the top of the shell cover (5). Tightening handles (7) for pressing against the outer wall of the ammonia nitrogen sensor (8) are installed on the front and rear outer walls of the annular protrusion (6).

3. The purification and filtration device for turbidity resistance in an online total nitrogen water quality monitoring instrument according to claim 2, characterized in that: A rubber plug (601) is installed at the top of the annular convex tube (6).

4. The purification and filtration device for turbidity resistance in an online total nitrogen water quality monitor according to claim 1, characterized in that: The inclined liquid inlet filter pipe (4) has a front filter plate (401) and a rear filter plate (402) installed at both ends. A stainless steel filter screen (403) is installed inside the inclined liquid inlet filter pipe (4) on the side of the rear filter plate (402) away from the front filter plate (401).

5. The purification and filtration device for turbidity resistance in an online total nitrogen water quality monitor according to claim 4, characterized in that: The inclined liquid inlet filter pipe (4) between the front filter plate (401) and the rear filter plate (402) is equipped with a sand core (404).

6. The purification and filtration device for turbidity resistance in an online total nitrogen water quality monitor according to claim 1, characterized in that: The inner end of the outer shell (1) is integrally formed with an annular flange, and the outer end of the filter basket (9) is integrally formed with an annular retaining edge for overlapping with the annular flange.

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