Biochemical pool process instrument sampler

Abstract

A biochemical pool process instrument sampler comprises a sampling pool, a filtering device and a backwashing water bucket, the sampling pool is communicated with a feeding port of the filtering device through a sampling pipe, another feeding port of the filtering device is communicated with the backwashing water bucket through a backwashing pipeline, and a bottom discharging port of the filtering device is communicated with a filtering blow-down pipe and a filtrate outflow pipe. The other end of the filtrate outflow pipe is communicated with a feed port of the measuring device, and a discharge port of the measuring device is communicated with the measuring blow-down pipe; according to the utility model, a clean measurement sample is provided, the cleaning period of the process instrument probe can be greatly prolonged, and the measurement accuracy of the process instrument is ensured at the same time.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment devices, in particular to a biochemical pool process instrument sampler. Background Art

[0002] Existing biochemical pool process instruments in sewage treatment plants, such as DO, ORP, and nitrate nitrogen, are directly inserted into the biochemical pool to measure various process indicators of the biochemical pool and provide a decision-making basis for process control. Due to the high sludge concentration in the biochemical pool, the instrument probe is easily contaminated by sludge during the measurement process. Therefore, the probe needs to be cleaned weekly to ensure the accuracy of the biochemical pool process instrument. For intelligent aeration occasions, the accuracy of such process instruments directly affects the process control results and production costs; however, frequent cleaning work adds a greater burden to on-site operation and maintenance, and greatly increases the demand for staffing, resulting in a significant increase in operation and maintenance costs, and does not conform to the development trend of unmanned and intelligent operation of national sewage treatment plants. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the utility model provides a biochemical pool process instrument sampler, which provides clean measurement samples and can greatly extend the cleaning cycle of the process instrument probe, while ensuring the accuracy of the process instrument measurement.

[0004] A biochemical pool process instrument sampler comprises a sampling pool, a filtering device and a backwash water bucket, wherein the sampling pool is connected to a feed port of the filtering device through a sampling tube, another feed port of the filtering device is connected to the backwash water bucket through a backwash pipeline, a bottom discharge port of the filtering device is connected to a filtering vent pipe and a filtrate outflow pipe, the other end of the filtrate outflow pipe is connected to a feed port of a measuring device, and a discharge port of the measuring device is connected to a measuring vent pipe.

[0005] In a preferred solution, a sampling pump is provided at the end of the sampling tube, the sampling pump is placed in the sampling pool, and a sampling valve is provided on the sampling tube.

[0006] In a preferred solution, a backwash pump is provided at the end of the backwash pipe, the backwash pump is placed in a backwash water bucket, and a backwash pipe valve is provided on the backwash pipe.

[0007] In a preferred solution, a first solenoid valve is provided on the filter vent pipe, and a filtrate overflow pipe is connected between the filter vent pipe and the upper side wall of the filter device.

[0008] In a preferred solution, a second solenoid valve is provided on the measuring vent pipe, and a measuring overflow pipe is connected between the measuring vent pipe and the upper end side wall of the measuring device.

[0009] In a preferred embodiment, a ceramic membrane is arranged inside the filtering device.

[0010] In a preferred solution, a diverter tube is provided at the end of the backwash pipe, the diverter tube is arranged inside the ceramic membrane, and atomizing nozzles are symmetrically arranged on the diverter tube in an annular manner.

[0011] A biochemical pool process instrument sampler, the device has the following advantages:

[0012] 1. This device can provide relatively clean measurement samples for the measuring device through the filtering device, which can greatly extend the cleaning cycle of the process instrument in the measuring device and improve the accuracy of the measurement process;

[0013] 2. This device can automatically clean the filter device through the automatic cleaning system, reducing the input of operation and maintenance personnel and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 This is the overall composition principle diagram of the utility model;

[0016] Figure 2 This is a cross-sectional view of the internal device of the filter device of the utility model.

[0017] In the figure: sampling pool 1, sampling tube 2, sampling valve 3, sampling pump 4, filtering device 5, ceramic membrane 6, filtrate outflow pipe 7, filter vent pipe 8, first solenoid valve 9, filtrate overflow pipe 10, measuring device 11, measuring overflow pipe 12, measuring vent pipe 13, second solenoid valve 14, backwash bucket 15, backwash pipeline 16, backwash pipe valve 17, backwash pump 18, diverter tube 19, atomizing nozzle 20. DETAILED DESCRIPTION

[0018] like Figure 1 As shown, a biochemical pool process instrument sampler includes a sampling pool 1, a filter device 5 and a backwash bucket 15, the sampling pool 1 is connected to the feed port of the filter device 5 through a sampling pipe 2, the other feed port of the filter device 5 is connected to the backwash bucket 15 through a backwash pipe 16, the bottom discharge port of the filter device 5 is connected to the filter vent pipe 8 and the filtrate outflow pipe 7, the other end of the filtrate outflow pipe 7 is connected to the feed port of the measuring device 11, and the discharge port of the measuring device 11 is connected to the measuring vent pipe 13;

[0019] During the operation of the device, the sewage to be tested in the sampling pool 1 is pumped into the filter device 5 through the sampling tube 2, filtered by the filter device 5 to remove the sludge, and then transported to the measuring device 11 through the filtrate outflow pipe 7 until the filtrate submerges the probe of the process instrument, and the instrument data can be read; after the measurement is completed, the cleaning water in the backwash bucket 15 is automatically transported to the filter device 5 through the backwash pipe 16 and the ceramic membrane 6 in the filter device 5 is sprayed and washed, and the waste liquid after cleaning is discharged through the filter vent pipe 8.

[0020] The preferred solution is Figure 1 As shown, a sampling pump 4 is provided at the end of the sampling tube 2, and the sampling pump 4 is placed in the sampling pool 1. A sampling valve 3 is provided on the sampling tube 2, and the automation of liquid sampling can be achieved by opening and closing the sampling pump 4 and the sampling valve 3.

[0021] The preferred solution is Figure 1 As shown, a backwash pump 18 is provided at the end of the backwash pipe 16, and the backwash pump 18 is placed in the backwash water bucket 15. A backwash pipe valve 17 is provided on the backwash pipe; the backwash work can be automated by the backwash pump 18 and the backwash pipe valve 17.

[0022] The preferred solution is Figure 1 As shown, a first solenoid valve 9 is provided on the filter vent pipe 8, and a filtrate overflow pipe 10 is connected between the filter vent pipe 8 and the upper end side wall of the filter device 5 to prevent the filter device 5 from overflowing.

[0023] The preferred solution is Figure 1 As shown, a second solenoid valve 14 is provided on the measuring vent pipe 13 , and a measuring overflow pipe 12 is connected between the measuring vent pipe 13 and the upper end side wall of the measuring device 11 to prevent the measuring device 11 from overflowing.

[0024] The preferred solution is Figure 2 As shown, a ceramic membrane 6 is arranged inside the filter device 5; a diverter tube 19 is arranged at the end of the backwash pipe 16, and the diverter tube 19 is arranged inside the ceramic membrane 6, and an atomizing nozzle 20 is symmetrically arranged on the diverter tube 19; Cai Yongsheng said structure, backwash water can be sprayed out in a mist form at high speed through the atomizing nozzle 20, and the inner wall of the ceramic membrane 6 is sprayed and flushed in all directions to ensure the filtering effect of the filter device 5 and the accuracy of the next sewage sampling.

Claims

1. A biochemical pool process instrument sampler, comprising a sampling pool (1), a filtering device (5) and a backwash bucket (15), characterized in that: The sampling pool (1) is connected to a feed port of a filter device (5) via a sampling tube (2); another feed port of the filter device (5) is connected to a backwash water bucket (15) via a backwash pipe (16); a bottom discharge port of the filter device (5) is connected to a filter drain pipe (8) and a filtrate outflow pipe (7); the other end of the filtrate outflow pipe (7) is connected to a feed port of a measuring device (11); and a discharge port of the measuring device (11) is connected to a measuring drain pipe (13).

2. The biochemical pool process instrument sampler according to claim 1, characterized in that: A sampling pump (4) is provided at the end of the sampling tube (2), and the sampling pump (4) is placed in the sampling pool (1). A sampling valve (3) is provided on the sampling tube (2).

3. The biochemical pool process instrument sampler according to claim 1, characterized in that: A backwash pump (18) is provided at the end of the backwash pipeline (16). The backwash pump (18) is placed in the backwash water bucket (15). A backwash pipe valve (17) is provided on the backwash pipe.

4. The biochemical pool process instrument sampler according to claim 1, characterized in that: A first electromagnetic valve (9) is provided on the filter vent pipe (8), and a filtrate overflow pipe (10) is connected to the filter vent pipe (8) and the upper side wall of the filter device (5).

5. The biochemical pool process instrument sampler according to claim 1, characterized in that: A second solenoid valve (14) is provided on the measuring vent pipe (13), and a measuring overflow pipe (12) is connected to the measuring vent pipe (13) and the upper end side wall of the measuring device (11).

6. The biochemical pool process instrument sampler according to claim 1, characterized in that: A ceramic membrane (6) is arranged inside the filtering device (5).

7. The biochemical pool process instrument sampler according to claim 6, characterized in that: A flow divider (19) is provided at the end of the backwash pipe (16), the flow divider (19) being arranged inside the ceramic membrane (6), and an atomizing nozzle (20) is symmetrically arranged on the flow divider (19).

Images