Submerged dissolved oxygen sensor mounting bracket

Abstract

The utility model provides a submerged dissolved oxygen sensor mounting bracket. The submerged dissolved oxygen sensor mounting bracket comprises a pipe body, a flushing pipe, a hoop, a mechanical connecting piece, a dissolved oxygen sensor and a sensor optical assembly, the pipe body is an L-shaped pipe fitting, the upper end of the pipe body is fixedly mounted on the inner side surface of the tank wall of the aerobic tank through a mechanical connecting piece, and the dissolved oxygen sensor is mounted at the lower end; the sensor optical assembly is an end optical structure of the dissolved oxygen sensor and is in contact with a water body; the hoop is used for mounting the flushing pipe on the outer side wall of the pipe body; one end of the flushing pipe is communicated with the tap water inlet end, and the other outlet end is opposite to the end of the sensor optical assembly. The bracket can avoid the influence of sludge adhesion and bubble impact, and ensures the authenticity and accuracy of a detection result.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and particularly relates to a submerged dissolved oxygen sensor mounting bracket. Background Art

[0002] AAO process is a common secondary sewage treatment process that can simultaneously remove pollutants such as nitrogen, phosphorus, and organic matter in sewage. The aerobic tank can degrade organic matter in the presence of dissolved oxygen (DO) and nitrify ammonia nitrogen. It is an important part of the AAO process, so its DO needs to be controlled within an appropriate range. Fluorescence dissolved oxygen sensors are often used in production to monitor the DO level of the aerobic tank in real time and make corresponding adjustments.

[0003] However, during operation, the dissolved oxygen sensor is easily attached by sludge or debris, resulting in failure to detect normally. In addition, if the installation position is directly above the aeration plate, the bubbles generated will directly contact the optical components of the dissolved oxygen sensor and affect the dissolved oxygen sensor, which is often manifested as large fluctuations in the value and cannot reflect the actual dissolved oxygen concentration in the water. Summary of the invention

[0004] Technical solution: In order to solve the above-mentioned technical problems, the utility model provides a submerged dissolved oxygen sensor mounting bracket, comprising a pipe body, a flushing pipe, a clamp, a mechanical connector, a dissolved oxygen sensor, and a sensor optical component; the pipe body is an L-shaped pipe fitting, the upper end of which is fixedly mounted on the inner side of the wall of the aerobic pool through a mechanical connector, and the dissolved oxygen sensor is mounted on the lower end; the sensor optical component is an end optical structure of the dissolved oxygen sensor, which is in contact with the water body; the clamp is used to mount the flushing pipe on the outer side wall of the pipe body; one end of the flushing pipe is connected to the tap water inlet end, and the other end of the outlet end is opposite to the end of the sensor optical component.

[0005] As an improvement, it also includes an electric valve installed on the flushing pipe to open or close the liquid transmission in the pipe.

[0006] As an improvement, a protective cover is further included; the protective cover is installed on the outer side wall of the dissolved oxygen sensor and extends out of the end of the sensor optical component to protect the sensor optical component.

[0007] As an improvement, it also includes ventilation holes, which are multiple through holes, each independently arranged at the end of the protective cover extending out of the sensor optical component, opposite to the water outlet end of the flushing pipe.

[0008] As an improvement, it also includes an aeration plate installed at the bottom of the aerobic tank to provide dissolved oxygen for the aerobic tank.

[0009] As an improvement, the clamp is a double-connected clamp structure, and the dissolved oxygen sensor is installed horizontally.

[0010] Beneficial effect: The bracket proposed by the utility model can avoid the influence of sludge adhesion and bubble impact, and ensure the authenticity and accuracy of the test results. In addition, the dissolved oxygen sensor in the aerobic tank of a conventional sewage station is placed vertically, and the dissolved oxygen reading jumps rapidly between 2-8mg / L, which is extremely unstable. In comparison, in the utility model, improvements are made. After the above bracket is installed, the dissolved oxygen sensor is placed horizontally, and the dissolved oxygen fluctuation is small, ranging between ±0.2mg / L, and the effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the bracket of the utility model.

[0012] Figure 2 This is a schematic diagram of the structure in which the bracket of the utility model is installed on the inner wall of the aerobic pool.

[0013] Figure 3 This is a partial cross-sectional view of the location of the dissolved oxygen sensor of the bracket of the utility model.

[0014] In the figure: 1- pipe body, 2- electric valve, 3- mechanical connector, 4- flushing pipe, 5- double clamp, 6- dissolved oxygen sensor, 7- protective cover, 8- air vent, 9- aerobic tank wall, 10- aeration plate, 11- sensor optical component. DETAILED DESCRIPTION

[0015] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0016] See Figure 1-Figure 2 As shown, a submersible dissolved oxygen sensor mounting bracket includes a pipe body 1, a flushing pipe 4, a clamp 5, a mechanical connector 3, a dissolved oxygen sensor 6, and a sensor optical component 11; the pipe body 1 is an L-shaped pipe, the upper end of which is fixedly mounted on the inner side of the wall of the aerobic pool 9 through the mechanical connector 3, and the dissolved oxygen sensor 6 is mounted on the lower end; the sensor optical component 11 is an end optical structure of the dissolved oxygen sensor 6, which is in contact with the water body; the clamp 5 is used to mount the flushing pipe 4 on the outer side wall of the pipe body 1; one end of the flushing pipe (4) is connected to the tap water inlet end, and the other end of the outlet end is opposite to the end of the sensor optical component 11. The clamp 5 is a double-connected clamp structure, and the dissolved oxygen sensor 6 is installed horizontally. It also includes an aeration plate, which is installed at the bottom of the aerobic pool and is used to provide dissolved oxygen for the aerobic pool.

[0017] In the present utility model, the dissolved oxygen sensor can be the Shanghai Leici SJG-209 online optical dissolved oxygen sensor. The sensor optical component is the optical component at the front end of this sensor, but is not limited to this model of sensor. As long as it can complete the function of the sensor in this application, it is within the protection scope of the present utility model.

[0018] The mechanical connector 3 is used to fix the pipe to the inner wall of the aerobic tank. It can be a combination of a clamp and a fixing seat. It is connected to the pipe 1 through the clamp, and the other end is fixed to the side wall of the aerobic tank through the fixing seat to complete the connection between the pipe and the side wall of the aerobic tank.

[0019] In the present invention, an electric valve 2 is also included, which is installed on the flushing pipe 4 and is used to open or close the liquid transmission in the pipe. Preferably, the electric valve is opened twice a day to ensure that the air vent and the surface of the sensor optical component are clean.

[0020] See Figure 3 As shown, it also includes a protective cover 7; the protective cover 7 is installed on the outer side wall of the dissolved oxygen sensor 6 and extends out of the end of the sensor optical component 11. It also includes air holes 8, which are multiple through holes, each independently arranged at the end of the protective cover 7 extending out of the sensor optical component 11, and opposite to the water outlet end of the flushing pipe 4. The relative position facilitates the sensor optical component 11 to contact the water in the aerobic tank after the flushing pipe 4 discharges water, thereby improving the measurement accuracy.

[0021] Working principle: The submerged dissolved oxygen sensor mounting bracket in the utility model mainly includes a pipe body 1, an electric valve 2, a fixer 3, a flushing pipe 4, a double clamp 5, a dissolved oxygen sensor 6, a protective cover 7, and a vent hole 8. When in use, the fixer 3 is fixed on the wall 9 of the aerobic pool, tap water is connected to the flushing pipe 4, and an aeration plate 10 is laid at the bottom of the aerobic pool.

[0022] The flushing pipe 4, the air vent 8 and the sensor optical component 11 are in a vertical position to ensure that the flushing water can vertically clean the surface of the sensor optical component 11. The bracket of the utility model, on the one hand, prevents bubbles from impacting the dissolved oxygen sensor, causing large fluctuations in the dissolved oxygen value; on the other hand, it can regularly clean the dissolved oxygen sensor to prevent sludge or debris from adhering to affect normal detection.

[0023] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A submersible dissolved oxygen sensor mounting bracket, characterized in that: The invention comprises a pipe body (1), a flushing pipe (4), a clamp (5), a mechanical connector (3), a dissolved oxygen sensor (6), and a sensor optical component (11); the pipe body (1) is an L-shaped pipe, the upper end of which is fixedly mounted on the inner side of the wall of an aerobic pool (9) through a mechanical connector (3), and the lower end of which is mounted with a dissolved oxygen sensor (6); the sensor optical component (11) is an end optical structure of the dissolved oxygen sensor (6) and is in contact with the water body; the clamp (5) is used to mount the flushing pipe (4) on the outer side wall of the pipe body (1); one end of the flushing pipe (4) is connected to the tap water inlet end, and the other end of the outlet end is opposite to the end of the sensor optical component (11).

2. The submersible dissolved oxygen sensor mounting bracket according to claim 1, characterized in that: It also includes an electric valve (2) installed on the flushing pipe (4) and used to open or close the transmission of liquid in the pipe.

3. The submersible dissolved oxygen sensor mounting bracket according to claim 1, characterized in that: It also includes a protective cover (7); the protective cover (7) is installed on the outer side wall of the dissolved oxygen sensor (6) and extends out of the end of the sensor optical component (11).

4. The submersible dissolved oxygen sensor mounting bracket according to claim 3, characterized in that: It also includes air holes (8), which are multiple through holes, each independently arranged at the end of the protective cover (7) extending out of the sensor optical component (11) and opposite to the water outlet end of the flushing pipe (4).

5. The submersible dissolved oxygen sensor mounting bracket according to claim 1, characterized in that: It also includes an aeration plate (10) installed at the bottom of the aerobic pool and used to provide dissolved oxygen for the aerobic pool.

6. The submersible dissolved oxygen sensor mounting bracket according to claim 1, characterized in that: The clamp (5) is a double-connected clamp structure, and the dissolved oxygen sensor (6) is installed horizontally.

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