Online instrument back flushing device

Abstract

The utility model provides an online instrument back flushing device which comprises a first water inlet pipeline, a second water inlet pipeline, a main water inlet pipeline, a filtering pipeline, a sampling pipeline and a back flushing pipeline, the outlet end of the main water inlet pipeline is connected with the inlet end of the filter pipeline, the outlet end of the filter pipeline is connected with the inlet end of the sampling pipeline, and the outlet end of the filter pipeline is connected with the outlet end of the blowback pipeline; a main water inlet pipeline hand valve is arranged on the main water inlet pipeline; a Y-shaped filter is arranged on the filtering pipeline; the outlet end of the sampling pipeline is connected with an online instrument measuring box; according to the invention, factors that measurement is influenced by impurities such as sludge in incoming water can be reduced, delay of updating of measurement data due to the fact that an instrument monitors dead water in the sampler all the time is prevented, and the risk of untimely monitoring is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of online analytical instruments, in particular to an online instrument back-flushing device. Background Art

[0002] Ordinary online analyzers are continuous measuring devices. When the water quality changes, such as silt, large suspended particles, etc., the online measurement analyzers will be affected by factors such as water discontinuity. In particular, the online instruments measure the inlet flow rate and flow rate instability, resulting in inaccurate measurements. Utility Model Content

[0003] In view of the above problems, the purpose of this application is to provide an online instrument backflush device, so that it can reduce the impact of impurities such as silt in the incoming water on measurement factors, prevent the delay in measuring data updates due to the instrument always monitoring dead water in the sampler, and reduce the risk of untimely monitoring.

[0004] To achieve part or all of the above-mentioned purposes or other purposes, the present application provides the following technical solutions: an online instrument backwash device, comprising a first water inlet pipeline, a second water inlet pipeline, a total water inlet pipeline, a filter pipeline, a sampling pipeline and a backwash pipeline; the outlet end of the first water inlet pipeline is connected to the inlet end of the total water inlet pipeline, and the outlet end of the second water inlet pipeline is connected to the inlet end of the total water inlet pipeline; the outlet end of the total water inlet pipeline is connected to the inlet end of the filter pipeline, the outlet end of the filter pipeline is connected to the inlet end of the sampling pipeline, and the outlet end of the filter pipeline is connected to the outlet end of the backwash pipeline; a backwash drain valve and a total water inlet pipeline manual valve are arranged on the total water inlet pipeline, and the backwash drain valve is located upstream of the total water inlet pipeline manual valve; a Y-type filter is arranged on the filter pipeline; the outlet end of the sampling pipeline is connected to an online instrument measurement box; a sampling pipeline manual valve and an analysis box switch valve are arranged on the sampling pipeline, and the analysis box switch valve is located downstream of the sampling pipeline manual valve; a backwash instrument air switch valve is arranged on the backwash pipeline.

[0005] Furthermore, a first water inlet pipeline switch valve and a first water inlet pipeline manual valve are arranged on the first water inlet pipeline, and the first water inlet pipeline manual valve is located downstream of the first water inlet pipeline switch valve; a second water inlet pipeline switch valve and a second water inlet pipeline manual valve are arranged on the second water inlet pipeline, and the second water inlet pipeline manual valve is located downstream of the second water inlet pipeline switch valve.

[0006] Furthermore, the online instrument measurement box includes a sampler and a measuring instrument; the outlet end of the sampling pipeline is connected to the inlet end of the sampler, and the outlet end of the sampler is connected to the inlet end of the measuring instrument; a peristaltic pump is arranged between the sampler and the measuring instrument.

[0007] Furthermore, a boundary instrument air valve is also provided on the back-blowing pipeline, the boundary instrument air valve is close to the inlet end of the back-blowing pipeline, and the back-blowing instrument air switch valve is close to the outlet end of the back-blowing pipeline.

[0008] Compared with the prior art, the beneficial effect of the utility model is that the impurities accumulated in the water inlet pipeline are blown to the low-point drain valve through the air backflush line for backflush cleaning, which can effectively reduce the situation where the online measuring and analysis instruments are affected by water discontinuity due to water quality impurities such as silt, large particles of suspended matter, etc., and at the same time improve the continuous accuracy of daily monitoring, prevent the delay in measuring data updates due to the instrument always monitoring the dead water in the sampler, and reduce the risk of untimely monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] In the figure: 1. Back-blowing emptying valve; 2. First water inlet pipeline switch valve; 3. Second water inlet pipeline switch valve; 4. First water inlet pipeline manual valve; 5. Second water inlet pipeline manual valve; 6. Main water inlet pipeline manual valve; 7. Y-type filter; 8. Sampling pipeline manual valve; 9. Back-blowing instrument air switch valve; 10. Analysis box switch valve; 11. Boundary area instrument air valve; 12. Peristaltic pump; 13. Sampler; 14. Measuring instrument; 21. Main water inlet pipeline; 22. Filter pipeline; 23. Sampling pipeline; 24. Back-blowing pipeline; 25. First water inlet pipeline; 26. Second water inlet pipeline. DETAILED DESCRIPTION

[0011] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0012] See attached Figure 1An online instrument backflush device comprises a first water inlet pipeline 25, a second water inlet pipeline 26, a total water inlet pipeline 21, a filter pipeline 22, a sampling pipeline 23 and a backflush pipeline 24; the outlet end of the first water inlet pipeline 25 is connected to the inlet end of the total water inlet pipeline 21, the outlet end of the second water inlet pipeline 26 is connected to the inlet end of the total water inlet pipeline 21; the outlet end of the total water inlet pipeline 21 is connected to the inlet end of the filter pipeline 22, the outlet end of the filter pipeline 22 is connected to the inlet end of the sampling pipeline 23, and the outlet end of the filter pipeline 22 is connected to the inlet end of the sampling pipeline 23. The outlet end of the back-blowing pipeline 24 is connected; a back-blowing drain valve 1 and a total water inlet pipeline manual valve 6 are arranged on the total water inlet pipeline 21, and the back-blowing drain valve 1 is located upstream of the total water inlet pipeline manual valve 6; a Y-type filter 7 is arranged on the filtering pipeline 22; the outlet end of the sampling pipeline 23 is connected to the online instrument measurement box; a sampling pipeline manual valve 8 and an analysis box switch valve 10 are arranged on the sampling pipeline 23, and the analysis box switch valve 10 is located downstream of the sampling pipeline manual valve 8; a back-blowing instrument air switch valve 9 is arranged on the back-blowing pipeline 24.

[0013] Furthermore, a first water inlet pipeline switch valve 2 and a first water inlet pipeline manual valve 4 are provided on the first water inlet pipeline 25, and the first water inlet pipeline manual valve 4 is located downstream of the first water inlet pipeline switch valve 2; a second water inlet pipeline switch valve 3 and a second water inlet pipeline manual valve 5 are provided on the second water inlet pipeline 26, and the second water inlet pipeline manual valve 5 is located downstream of the second water inlet pipeline switch valve 3.

[0014] Furthermore, the online instrument measurement box includes a sampler 13 and a measuring instrument 14; the outlet end of the sampling pipeline 23 is connected to the inlet end of the sampler 13, and the outlet end of the sampler 13 is connected to the inlet end of the measuring instrument 14; a peristaltic pump 12 is arranged between the sampler 13 and the measuring instrument 14.

[0015] Furthermore, a boundary instrument air valve 11 is also provided on the back-blowing pipeline 24 , and the boundary instrument air valve 11 is close to the inlet end of the back-blowing pipeline 24 , and the back-blowing instrument air switch valve 9 is close to the outlet end of the back-blowing pipeline 24 .

[0016] Further, the method of using the backflush device is as follows:

[0017] When it is necessary to backflush the main water inlet pipeline 21 and the filter pipeline 22: close the first water inlet pipeline manual valve 4, the second water inlet pipeline manual valve 5, and the main water inlet pipeline manual valve 6; close the first water inlet pipeline switch valve 2, the second water inlet pipeline switch valve 3, the sampling pipeline manual valve 8, and the analysis box switch valve 10; disassemble the Y-type filter 7 for cleaning, and reinstall it after cleaning; after reinstallation, open the backflush drain valve 1, the main water inlet pipeline manual valve 6, the backflush instrument air switch valve 9, and the boundary area instrument air valve 11 to backflush the impurities accumulated in the elbow part of the pipeline.

[0018] Furthermore, when it is necessary to back-blow the sludge accumulated at the elbow of the first water inlet pipeline 25: close the back-blow drain valve 1, the second water inlet pipeline switch valve 3, the second water inlet pipeline manual valve 5, the sampling pipeline manual valve 8, and the analysis box switch valve 10; open the first water inlet pipeline switch valve 2, the first water inlet pipeline manual valve 4, the main water inlet pipeline manual valve 6, the back-blow instrument air switch valve 9, and the boundary area instrument air valve 11; back-blow the impurities accumulated in the elbow part of the first water inlet pipeline 25 to prevent sludge accumulation in the elbow.

[0019] Furthermore, when it is necessary to back-blow the sludge accumulated at the elbow of the second water inlet pipe 26: close the back-blow drain valve 1, the first water inlet pipe switch valve 2, the first water inlet pipe manual valve 4, the sampling pipe manual valve 8, and the analysis box switch valve 10; open the second water inlet pipe switch valve 3, the second water inlet pipe manual valve 5, the main water inlet pipe manual valve 6, the back-blow instrument air switch valve 9, and the boundary area instrument air valve 11; back-blow the impurities accumulated in the elbow part of the second water inlet pipe 26 to prevent sludge accumulation in the elbow.

[0020] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An online instrument backflush device, characterized in that: The invention comprises a first water inlet pipeline (25), a second water inlet pipeline (26), a total water inlet pipeline (21), a filtering pipeline (22), a sampling pipeline (23) and a back-blowing pipeline (24); the outlet end of the first water inlet pipeline is connected to the inlet end of the total water inlet pipeline, and the outlet end of the second water inlet pipeline is connected to the inlet end of the total water inlet pipeline; the outlet end of the total water inlet pipeline (21) is connected to the inlet end of the filtering pipeline (22), the outlet end of the filtering pipeline (22) is connected to the inlet end of the sampling pipeline (23), and the outlet end of the filtering pipeline (22) is connected to the outlet end of the back-blowing pipeline (24); The main water inlet pipeline (21) is provided with a back-blowing drain valve (1) and a main water inlet pipeline manual valve (6), wherein the back-blowing drain valve (1) is located upstream of the main water inlet pipeline manual valve (6); the filter pipeline (22) is provided with a Y-type filter (7); the outlet end of the sampling pipeline (23) is connected to an online instrument measurement box; the sampling pipeline manual valve (8) and an analysis box switch valve (10) are provided on the sampling pipeline (23), wherein the analysis box switch valve (10) is located downstream of the sampling pipeline manual valve (8); and the back-blowing instrument air switch valve (9) is provided on the back-blowing pipeline (24).

2. An online instrument backflush device according to claim 1, characterized in that: The first water inlet pipeline (25) is provided with a first water inlet pipeline switch valve (2) and a first water inlet pipeline manual valve (4), and the first water inlet pipeline manual valve (4) is located downstream of the first water inlet pipeline switch valve (2); the second water inlet pipeline (26) is provided with a second water inlet pipeline switch valve (3) and a second water inlet pipeline manual valve (5), and the second water inlet pipeline manual valve (5) is located downstream of the second water inlet pipeline switch valve (3).

3. An online instrument backflush device according to claim 1, characterized in that: The online instrument measurement box comprises a sampler (13) and a measuring instrument (14); the outlet end of the sampling pipeline (23) is connected to the inlet end of the sampler (13), and the outlet end of the sampler (13) is connected to the inlet end of the measuring instrument (14); a peristaltic pump (12) is arranged between the sampler (13) and the measuring instrument (14).

4. An online instrument backflush device according to claim 1, characterized in that: A boundary area instrument air valve (11) is also provided on the back-blowing pipeline (24), wherein the boundary area instrument air valve (11) is close to the inlet end of the back-blowing pipeline (24), and the back-blowing instrument air switch valve (9) is close to the outlet end of the back-blowing pipeline (24).

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