Pre-filtration treatment device of nitrate nitrogen sensor

Abstract

The utility model discloses a nitrate nitrogen sensor's preposed filtration treatment device, including the measuring tank, the top of measuring tank is equipped with the body, the left side and right side of measuring tank are respectively communicated with water outlet pipe and water inlet pipe, the inner wall of water inlet pipe is fixedly connected with the mounting sleeve, the inner wall of mounting sleeve is fixedly connected with the filter plate, and the filter plate is fixedly connected with the filter plate. The water outlet pipe is communicated with a flushing pipe and a back-flushing pipe, the flushing pipe and the back-flushing pipe are respectively provided with a water pump and an air pump, and the water outlet pipe, the flushing pipe and the back-flushing pipe are respectively provided with an electromagnetic valve. According to the utility model, the test precision of the sensor can be effectively improved, the service life of the sensor can be effectively prolonged, the sensor can be applied to high-pollution water bodies, the stability and precision of measured values can be kept for a long time, the application problem of high-pollution industry requirements is solved, and a feasible scheme is provided for the development of part of industry technologies.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage measurement technical field more specifically, relate to a kind of pre-filtering treatment device of nitrate nitrogen sensor. BACKGROUND

[0002] Nitrate nitrogen sensor is a kind of instrument component specially used to detect the nitrate nitrogen content in water body or other medium, which is mainly used in environmental monitoring, agricultural field and industrial process control.

[0003] UV nitrate nitrogen sensor is widely used, and in sewage treatment application, there are relatively more particulate matters in liquid, which can greatly affect the measured value, and even cannot be measured when the turbidity reaches a certain degree, so a kind of pre-filtering treatment device of nitrate nitrogen sensor is needed. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model aims to provide a kind of pre-filtering treatment device of nitrate nitrogen sensor.

[0005] To solve the above problems, the utility model adopts the following technical scheme:

[0006] A kind of pre-filtering treatment device of nitrate nitrogen sensor, including measuring groove, the top of the measuring groove is provided with body, the left and right sides of the measuring groove are communicated with water outlet pipe and water inlet pipe respectively, the inner wall of the water inlet pipe is fixedly connected with mounting sleeve, the inner wall of the mounting sleeve is fixedly connected with filter plate, the water outlet pipe is communicated with flushing pipe and backflushing pipe, water pump and air pump are installed on the flushing pipe and backflushing pipe respectively, and electromagnetic valve is installed on the water outlet pipe, flushing pipe and backflushing pipe.

[0007] As a further description of the above technical scheme:

[0008] Rotary rod is inserted through the filter plate and rotationally connected thereto, the left end of the rotary rod is fixedly connected with impeller, the inner wall of the mounting sleeve is fixedly connected with mounting ring, the impeller is located on the inner side of the mounting ring, the right end of the rotary rod is fixedly connected with two cleaning brushes, and the left side of the two cleaning brushes is in contact with the filter plate.

[0009] As a further description of the above technical scheme:

[0010] Shaft seal is sleeved on the rotary rod and fixedly connected thereto, and the outer ring of the shaft seal is fixedly connected with the filter plate.

[0011] As a further description of the above technical scheme:

[0012] Limiting sheet is sleeved on the rotary rod and fixedly connected thereto, and the limiting sheet is located on the left side of the filter plate.

[0013] As a further description of the above technical solutions:

[0014] The right side of the limiting sheet is embedded with annularly distributed rolling balls, and the right side of the rolling balls is movably connected with the filter plate.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The scheme can effectively improve the sensor test precision and service life, can be applied to high-pollution water bodies, long-term maintain the measurement value stability and precision, and further solves the application problem of high-pollution industry demand, provides a feasible scheme for the expansion of part of industry technology. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the second perspective view of the utility model;

[0018] Figure 2 It is the second perspective view of the utility model;

[0019] Figure 3 It is the sectional view of the utility model;

[0020] Figure 4 It is the second perspective view of the utility model Figure 3 It is the enlarged view of A part in the utility model.

[0021] Explanation of reference numerals in the drawing:

[0022] 1, measuring groove; 2, body; 3, water outlet pipe; 4, water inlet pipe; 5, mounting sleeve; 6, filter plate; 7, flushing pipe; 8, backflushing pipe; 9, water pump; 10, air pump; 11, electromagnetic valve; 12, rotating rod; 13, impeller; 14, mounting ring; 15, cleaning brush; 16, shaft seal; 17, limiting sheet; 18, rolling ball. DETAILED DESCRIPTION

[0023] The technical solutions in the utility model embodiments will be clearly and completely described in connection with the drawings in the utility model embodiments;

[0024] Please refer to Figures 1-4 In the utility model, a kind of pre-filtering treatment device of nitrate nitrogen sensor, including measuring groove 1, the top of measuring groove 1 is equipped with body 2, the left and right sides of measuring groove 1 are respectively communicated with water outlet pipe 3 and water inlet pipe 4, the inner wall of water inlet pipe 4 is fixedly connected with mounting sleeve 5, the inner wall of mounting sleeve 5 is fixedly connected with filter plate 6, flushing pipe 7 and backflushing pipe 8 are communicated on water outlet pipe 3, water pump 9 and air pump 10 are respectively installed on flushing pipe 7 and backflushing pipe 8, electromagnetic valve 11 is installed on water outlet pipe 3, flushing pipe 7 and backflushing pipe 8.

[0025] The utility model discloses a sewage measuring device, including the measuring groove 1, the body 2, the water inlet pipe 4, the water outlet pipe 3, the electromagnetic valve 11, the gas pump 10, the backflush pipe 8, the water pump 9 and the washing pipe 7, the measuring groove 1 is installed in the body 2, the water inlet pipe 4 is connected with the measuring groove 1, the water outlet pipe 3 is connected with the measuring groove 1, the electromagnetic valve 11 is connected with the water inlet pipe 4 and the water outlet pipe 3, the gas pump 10 is connected with the backflush pipe 8, the backflush pipe 8 is connected with the water outlet pipe 3, the water pump 9 is connected with the washing pipe 7 and the water outlet pipe 3, the washing pipe 7 is connected with the measuring groove 1.

[0026] After measuring, the electromagnetic valve 11 except the backflush pipe 8 is closed, and the gas pump 10 is opened, the gas pump 10 fills air into the water outlet pipe 3 through the backflush pipe 8, then the air flushes the sample in the measuring groove 1 from the water inlet pipe 4, thereby realizing the effect of cleaning the inside of the measuring groove 1, and the backflushed liquid and gas pass through the filter plate 6 reversely, thereby realizing the effect of backflush cleaning of the filter plate 6, which is convenient for subsequent detection of sewage.

[0027] Before and after measuring, the user closes the electromagnetic valve 11 except on the flushing pipe 7, and opens the water pump 9, the water pump 9 injects pure water from the flushing pipe 7 and the water outlet pipe 3 into the measuring groove 1, which plays the effect of rinsing the inner wall of the measuring device, and improves the test precision of the UV nitrate sensor.

[0028] Please refer to Figure 4 Wherein: the filter plate 6 is provided with a rotating rod 12 rotatably connected thereto, the left end of the rotating rod 12 is fixedly connected with an impeller 13, the inner wall of the mounting sleeve 5 is fixedly connected with a mounting ring 14, the impeller 13 is located on the inner side of the mounting ring 14, the right end of the rotating rod 12 is fixedly connected with two cleaning brushes 15, and the left sides of the two cleaning brushes 15 are in contact with the filter plate 6.

[0029] In the process of backflush cleaning of the filter plate 6, the sample and air flowing through the mounting ring 14 can drive the impeller 13 to rotate, the impeller 13 rotates to drive the rotating rod 12 to rotate, and the rotating rod 12 rotates to drive the cleaning brushes 15 to slide along the surface of the filter plate 6, thereby realizing the effect of scraping off dirt on the surface of the filter plate 6, and improving the cleaning effect of the filter plate 6.

[0030] Please refer to Figure 4 Wherein: the rotating rod 12 is provided with a shaft seal 16 fixedly connected thereto, and the outer ring of the shaft seal 16 is fixedly connected with the filter plate 6.

[0031] In the utility model, the shaft seal 16 can reduce friction to improve the practicability of the device, and can avoid the situation that sewage enters the gap between the rotating rod 12 and the filter plate 6, thereby improving the practicability of the device.

[0032] Please refer to Figure 4Wherein: the upper sleeve of the rotating rod 12 is provided with the limiting sheet 17 fixedly connected therewith, and the limiting sheet 17 is located at the left side of the filter plate 6.

[0033] In the utility model, the limiting sheet 17 can limit the position of the rotating rod 12, so that the cleaning brush 15 always keeps in contact with the filter plate 6, thereby improving the cleaning effect of the filter plate 6.

[0034] Please refer to Figure 4 Wherein: the right side of the limiting sheet 17 is embedded with the annular distributed ball 18, and the right side of the ball 18 is movably connected with the filter plate 6.

[0035] In the utility model, the ball 18 can reduce the friction between the limiting sheet 17 and the filter plate 6, and improve the smoothness of the device operation.

[0036] The above is only the preferred specific implementation manner of the utility model; but the protection scope of the utility model is not limited to this. Any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the improvement concept of the utility model, is equivalent to replacement or change, and should be covered in the protection scope of the utility model.

Claims

1. A pre-filtering device for a nitrate sensor, comprising a measuring cell (1), characterized in that: The measuring tank (1) is equipped with a body (2) on the top. The left and right sides of the measuring tank (1) are respectively connected to a water outlet pipe (3) and a water inlet pipe (4). The inner wall of the water inlet pipe (4) is fixedly connected to an installation sleeve (5). The inner wall of the installation sleeve (5) is fixedly connected to a filter plate (6). The water outlet pipe (3) is connected to a flushing pipe (7) and a backflushing pipe (8). The flushing pipe (7) and the backflushing pipe (8) are respectively equipped with a water pump (9) and an air pump (10). The water outlet pipe (3), the flushing pipe (7) and the backflushing pipe (8) are all equipped with solenoid valves (11).

2. The pre-filtering device for a nitrate sensor according to claim 1, wherein: A rotating rod (12) is inserted through the filter plate (6) and rotatably connected thereto. An impeller (13) is fixedly connected to the left end of the rotating rod (12). An installation ring (14) is fixedly connected to the inner wall of the mounting sleeve (5). The impeller (13) is located inside the installation ring (14). Two cleaning brushes (15) are fixedly connected to the right end of the rotating rod (12). The left sides of the two cleaning brushes (15) are in contact with the filter plate (6).

3. The pre-filtering device for a nitrate sensor according to claim 2, wherein: The rotating rod (12) is fitted with a shaft seal (16) which is fixedly connected to it, and the outer ring of the shaft seal (16) is fixedly connected to the filter plate (6).

4. The pre-filtration device for a nitrate-nitrogen sensor according to claim 2, characterized in that: The rotating rod (12) is fitted with a limiting piece (17) that is fixedly connected to it, and the limiting piece (17) is located on the left side of the filter plate (6).

5. The pre-filtration device for a nitrate-nitrogen sensor according to claim 4, characterized in that: The right side of the limiting piece (17) is provided with annularly distributed balls (18), and the right side of the balls (18) is movably connected to the filter plate (6).

Images