Pipeline filtering and backwashing device

Abstract

The utility model relates to a pipeline filtering and backwashing device, which belongs to the technical field of pipeline filtering and cleaning and comprises an inlet valve and an outlet valve, a main pipeline and a branch pipeline are connected in parallel between the inlet valve and the outlet valve, a valve A, a Y-shaped filter and a valve D are arranged on the main pipeline, and a valve B is arranged on the branch pipeline; a backwashing pipeline is connected between the main pipeline and the branch pipeline, and a valve C is arranged on the backwashing pipeline; the Y-shaped filter is positioned between the valve A and the backwashing pipeline; the valve D is positioned between the backwashing pipeline and the outlet valve; the valve B is positioned between the inlet valve and the backwashing pipeline; according to the utility model, switching among normal water supply, temporary water supply and backwashing water supply states is realized through opening and closing of each valve, impurities in the cooling water supply pipeline can be filtered under the condition that the equipment is not stopped and water is not cut off, the filter screen is cleaned and the impurities are discharged through the backwashing loop, the shutdown maintenance frequency of the equipment is reduced, and the production efficiency is improved. The production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a pipeline filtration backwashing device, belonging to the field of pipeline filtration and cleaning technology. Background Technology

[0002] The heating element on the filling machine needs to be cooled by circulating cooling water. The cooling water is directly supplied by the cooling tower. Since there is no filter in the water supply pipeline, moss and filler fragments in the cooling tower will fall into the cooling water pipeline of the heating element, causing blockage of the cooling water pipeline, abnormal cooling, and equipment shutdown. Frequent shutdowns for maintenance are required, which seriously affects production efficiency. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a pipeline filtration backwashing device that can filter impurities in the cooling water supply pipeline without stopping the equipment or the water supply, and clean the filter screen through the backwashing circuit to discharge the impurities, thereby reducing the number of equipment downtime maintenance and improving production efficiency.

[0004] The pipeline filtration backwashing device of this utility model includes an inlet valve and an outlet valve. A main pipeline and a branch pipeline are connected in parallel between the inlet valve and the outlet valve. Valve A, a Y-type filter and valve D are installed on the main pipeline, and valve B is installed on the branch pipeline. A backwashing pipeline is connected between the main pipeline and the branch pipeline, and valve C is installed on the backwashing pipeline. The Y-type filter is located between valve A and the backwashing pipeline, valve D is located between the backwashing pipeline and the outlet valve, and valve B is located between the inlet valve and the backwashing pipeline.

[0005] The technical solution of this utility model is to provide a pipeline filter backwashing device. Under normal conditions, valve A is opened to connect the main pipeline, and the Y-type filter filters out the debris in the pipeline. When the Y-type filter is blocked, valve B can be temporarily opened and valve A closed to connect the branch pipeline for temporary water supply. Alternatively, valve C can be opened at the same time to connect the backwashing pipeline and backwash the Y-type filter while ensuring water supply.

[0006] Preferably, the Y-type filter has a main pipe and a branch pipe, with one end of the main pipe being the inlet and the other end being the outlet. The Y-type filter is connected to the main pipe through the inlet and outlet.

[0007] Furthermore, a filter screen is installed in the branch pipe of the Y-type filter. The filter screen is cylindrical and separates the main pipe of the Y-type filter, which can intercept impurities in the water flowing through the main pipe.

[0008] Preferably, the end of the branched pipe is provided with a drain outlet, which is connected to a drain pipe, and a drain valve is installed in the drain pipe.

[0009] The advantages of this utility model compared with the prior art are:

[0010] The pipeline filtration backwashing device described in this utility model can switch between normal water supply, temporary water supply and backwashing water supply states by opening and closing various valves. This utility model can filter impurities in the cooling water supply pipeline without stopping the equipment or water supply, and clean the filter screen through the backwashing pipeline to discharge the impurities, thereby reducing the number of equipment downtime maintenance and improving production efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of a Y-type filter.

[0013] In the diagram: 1. Inlet valve; 2. Valve B; 3. Branch pipe; 4. Valve C; 5. Outlet valve; 6. Valve D; 7. Main pipe; 8. Drain valve; 9. Y-type filter; 10. Valve A; 11. Inlet; 12. Outlet; 13. Drain outlet; 14. Filter screen. Detailed Implementation

[0014] The present invention will be further described below with reference to specific embodiments.

[0015] However, the description of this utility model is only a structural or even functional description of the embodiments, and the scope of the present utility model is not limited by the embodiments described herein.

[0016] For example, multiple embodiments may have various modifications and forms, and it should be understood that the scope of this utility model includes equivalents that can realize the technical concept.

[0017] like Figures 1-2 As shown, this embodiment is achieved through the following technical solution: it includes an inlet valve 1 and an outlet valve 5, with a main pipe 7 and a branch pipe 3 connected in parallel between the inlet valve 1 and the outlet valve 5. The main pipe 7 is equipped with a valve A10, a Y-type filter 9, and a valve D6, and the branch pipe 3 is equipped with a valve B2. A backwash pipe is connected between the main pipe 7 and the branch pipe 3, and a valve C4 is installed on the backwash pipe. The Y-type filter 9 is located between valve A10 and the backwash pipe, and valve D6 is located between the backwash pipe and the outlet valve 5. Valve B2 is located between the inlet valve 1 and the backwash pipe.

[0018] In this embodiment, the Y-type filter 9 has a main pipe and a branch pipe. One end of the main pipe is an inlet 11, and the other end is an outlet 12. The Y-type filter 9 is connected to the main pipe 7 through the inlet 11 and the outlet 12. A filter screen 14 is installed in the branch pipe of the Y-type filter 9. The filter screen 14 is cylindrical and separates the main pipe of the Y-type filter 9, which can intercept impurities in the water flowing through the main pipe. A drain outlet 13 is provided at the end of the branch pipe. The drain outlet 13 is connected to a drain pipe, and a drain valve 8 is installed in the drain pipe.

[0019] The method of using this utility model is as follows:

[0020] Under normal production conditions, inlet valve 1 and outlet valve 5 are open, and valves A10 and D6 are also open. Valve B2, valve C4, and drain valve 8 are closed. Cooling water flows through the main pipeline 7, and impurities in the water are filtered through the Y-type filter 9 and enter the cooling device behind it.

[0021] When the Y-type filter 9 is clogged, keep the inlet valve 1 and outlet valve 5 open, and temporarily open valve B2. Close valves C4, D6, drain valve 8, and A10, and connect branch pipe 3 for temporary water supply.

[0022] When backwashing the Y-type filter 9 is required, keep inlet valve 1 and outlet valve 5 open, and simultaneously open valves B2, C4, and drain valve 8. Close valves D6 and A10. Some water flows directly through branch pipe 3 and outlet valve 5 to the cooling device behind, while some water flows through valve C4 into the Y-type filter 9 to backwash the filter screen 14. After backwashing, the water is discharged from drain valve 8. Backwashing of the Y-type filter 9 can be performed while ensuring water supply. After backwashing, the main pipe 7 can be restored to normal use.

[0023] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A pipe filter backwash apparatus, characterized by, The utility model relates to a kind of water purification systems, including import valve (1) and export valve (5), and import valve (1) and export valve (5) are connected in parallel with main pipeline (7) and branch pipeline (3), main pipeline (7) is equipped with valve A (10), Y filter (9) and valve D (6), and branch pipeline (3) is equipped with valve B (2);Main pipeline (7) and branch pipeline (3) are connected with backwashing pipeline, and backwashing pipeline is equipped with valve C (4). The Y filter (9) is located between valve A (10) and backwashing pipeline, and valve D (6) is located between backwashing pipeline and export valve (5);Valve B (2) is located between import valve (1) and backwashing pipeline.

2. The plumbing filter backwash device of claim 1, wherein, The Y filter (9) is equipped with main pipe and bifurcated pipe, one end of main pipe is water inlet (11), the other end of main pipe is water outlet (12), and Y filter (9) is connected with main pipeline (7) by water inlet (11) and water outlet (12).

3. The plumbing filter backwash device of claim 2, wherein, The bifurcated pipe of the Y filter (9) is installed with filter screen (14), and the filter screen (14) is in the form of cylinder.

4. The plumbing filter backwash device of claim 3, wherein, The end of the bifurcated pipe is equipped with blowdown port (13), and the blowdown port (13) is connected with blowdown pipeline, and the blowdown pipeline is installed with blowdown valve (8).

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