Grid plate cleaning device

Abstract

The utility model relates to a kind of grid net plate cleaning devices, including inner flow type fine grid and water tank, high-pressure cleaning pipe and medium-pressure cleaning pipe being equipped in the inside of inner flow type fine grid and located at the two sides above grid net plate, the lower part of water tank is connected with water outlet pipe, the water outlet pipe is connected with medium-pressure water supply pipe and medium-pressure cleaning pipe by medium-pressure cleaning pump group, the medium-pressure water supply pipe is also connected with the high-pressure water supply pipe leading to high-pressure cleaning pipe, high-pressure cleaning pump is equipped on the high-pressure water supply pipe.The utility model grid net plate cleaning device structure is novel, reasonable in design, using the mode of high-pressure flushing and medium-pressure flushing combination, under the condition of more flocculation, high-pressure cleaning can be used simultaneously, reduce the residue on grid net plate, ensure the water capacity of grid net plate, significantly improve the cleaning effect of grid net plate;High-pressure flushing is used as needed, reduce energy consumption and water resource waste, meet the sustainable development requirement in the field of sewage treatment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a grating cleaning device. Background Technology

[0002] The internal flow fine screen rotates back and forth, intercepting debris in the water and carrying it to the surface. When the intercepted debris reaches the upper position with the screen, medium-pressure water is used to flush it, causing the debris to fall into the slag collection trough below. However, in conditions with a high volume of flocculent material, some residue may still remain on the screen surface after medium-pressure flushing. Over time, this residue accumulates and eventually affects the screen's water flow capacity. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a grating plate cleaning device with a novel structure and reasonable design, which reduces the residue on the grating plate, ensures the water flow capacity of the grating plate, and significantly improves the cleaning effect of the grating plate.

[0004] This utility model is achieved by the following solution: a bar screen cleaning device, including an internal flow fine bar screen and a water tank. The internal flow fine bar screen is provided with high-pressure cleaning pipes and medium-pressure cleaning pipes located on both sides above the bar screen. The lower part of the water tank is connected to a water outlet pipe. The water outlet pipe is connected to the medium-pressure cleaning pipes via a medium-pressure cleaning pump set and a medium-pressure water supply pipe. The medium-pressure water supply pipe is also connected to a high-pressure water supply pipe leading to the high-pressure cleaning pipe. The high-pressure water supply pipe is equipped with a high-pressure cleaning pump.

[0005] Furthermore, the medium-pressure cleaning pump set consists of two medium-pressure cleaning pumps connected in parallel, and each medium-pressure cleaning pump is equipped with valve A at its inlet and outlet ends.

[0006] Furthermore, the high-pressure cleaning pipe and the medium-pressure cleaning pipe are each equipped with a number of cleaning nozzles that are inclined toward the grid plate.

[0007] Furthermore, the high-pressure water supply pipe is connected to a faucet near the internal flow fine screen.

[0008] Furthermore, valves B are respectively provided at the inlet and outlet ends of the high-pressure cleaning pump.

[0009] Furthermore, a pressure sensor is connected to the high-pressure water supply pipe.

[0010] Furthermore, a water supply pipe is connected to the top of the water tank, and a valve C is installed on the water supply pipe.

[0011] Compared with the prior art, the present invention has the following advantages: The bar screen cleaning device of the present invention has a novel structure and reasonable design. It adopts a combination of high-pressure flushing and medium-pressure flushing. Under the condition of more flocculent material, high-pressure flushing can be activated at the same time to reduce the residue on the bar screen, ensure the water flow capacity of the bar screen, and significantly improve the cleaning effect of the bar screen. High-pressure flushing can be activated as needed, reducing energy consumption and water waste, which meets the requirements of sustainable development in the field of sewage treatment.

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0013] Figure 1 This is a pipeline diagram of an embodiment of this utility model; Figure 2 This is a simplified schematic diagram of the interior of the inlet-type fine grid in an embodiment of this utility model; The numbers in the diagram are explained as follows: 100 - Internal flow fine screen, 110 - Screen plate, 120 - High pressure cleaning pipe, 130 - Medium pressure cleaning pipe, 200 - Water tank, 210 - Water outlet pipe, 220 - Water supply pipe, 300 - Medium pressure water supply pipe, 400 - High pressure water supply pipe, 410 - Faucet, 420 - Pressure sensor, 500 - High pressure cleaning pump, 600 - Medium pressure cleaning pump. Detailed Implementation

[0014] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] like Figures 1-2As shown, a bar screen cleaning device includes an internal flow fine bar screen 100 and a water tank 200. The internal flow fine bar screen 100 is provided with a high-pressure cleaning pipe 120 and a medium-pressure cleaning pipe 130 located on both sides above the bar screen 110. The lower part of the water tank 200 is connected to a water outlet pipe 210. The water outlet pipe 210 is connected to the medium-pressure cleaning pipe 130 via a medium-pressure cleaning pump set, a medium-pressure water supply pipe 300, and a high-pressure water supply pipe 400 leading to the high-pressure cleaning pipe. A high-pressure cleaning pump 500 is provided on the high-pressure water supply pipe. This utility model's bar screen cleaning device combines high-pressure and medium-pressure flushing. The bar screen 110 passes through the medium-pressure flushing pipe and then the high-pressure flushing pipe along the running direction. Under normal circumstances, only medium-pressure flushing is needed. In cases with a large amount of flocculent material, high-pressure flushing can be activated simultaneously. The bar screen is flushed by medium pressure first and then by high pressure, reducing residue on the bar screen, ensuring the water flow capacity of the bar screen, and significantly improving the cleaning effect of the bar screen. The flushing mode can be flexibly selected according to the working conditions (such as high-pressure flushing when there is a large amount of flocculent material). It is convenient to use and has good adaptability. High-pressure flushing is activated as needed, reducing energy consumption and water waste, which meets the sustainable development requirements of the wastewater treatment field.

[0017] In this embodiment, the medium-pressure cleaning pump set consists of two medium-pressure cleaning pumps 600 connected in parallel. Each medium-pressure cleaning pump is equipped with a valve A at both its inlet and outlet ends. The parallel design of the two medium-pressure cleaning pumps provides redundancy and backup. If one pump fails, the other can be put into use, improving the stability and continuity of the system.

[0018] In this embodiment, the high-pressure cleaning pipe 120 and the medium-pressure cleaning pipe 130 are respectively provided with a plurality of cleaning nozzles inclined toward the grid plate. The diameter of the cleaning nozzle on the medium-pressure cleaning pipe 130 is larger than that of the cleaning nozzle on the high-pressure cleaning pipe 120. Generally, the diameter of the cleaning nozzle on the medium-pressure cleaning pipe 130 is 3~5mm, and the diameter of the cleaning nozzle on the high-pressure cleaning pipe 120 is 2~3mm.

[0019] In this embodiment, a faucet 410 is connected to the high-pressure water supply pipe near the internal flow fine screen. Since the diameter of the high-pressure water supply pipe is small, the faucet makes it convenient for staff to check whether the high-pressure water supply pipe is blocked. The structure is simple, easy to operate, and has a low failure rate.

[0020] In this embodiment, valves B are respectively provided at the inlet and outlet ends of the high-pressure cleaning pump.

[0021] In this embodiment, a pressure sensor 420 is connected to the high-pressure water supply pipe.

[0022] In this embodiment, a water supply pipe 220 is connected to the top of the water tank 200, and a valve C is provided on the water supply pipe.

[0023] In this embodiment, the high-pressure cleaning pump 500 has a flow rate of 44 L / min (11.6 GPM) and a pressure of 170 bar (2654 psi), and can specifically use the Italian UDOR brand CC42 / 17S high-pressure plunger pump. The medium-pressure cleaning pump 600 has a flow rate of 32 m³ / h, and can specifically use the Southern Pump Industry CDM32-6FSWPC light-duty vertical multistage centrifugal pump.

[0024] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0025] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0026] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0027] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A grating screen cleaning device, characterized in that: It includes an internal flow fine screen and a water tank. The internal flow fine screen is equipped with high-pressure cleaning pipes and medium-pressure cleaning pipes located on both sides above the screen. The lower part of the water tank is connected to a water outlet pipe. The water outlet pipe is connected to the medium-pressure water supply pipe and the medium-pressure cleaning pipe through a medium-pressure cleaning pump set. The medium-pressure water supply pipe is also connected to a high-pressure water supply pipe leading to the high-pressure cleaning pipe. The high-pressure water supply pipe is equipped with a high-pressure cleaning pump.

2. The grating cleaning device according to claim 1, characterized in that: The medium-pressure cleaning pump set consists of two medium-pressure cleaning pumps connected in parallel, with valve A installed at the inlet and outlet ends of each medium-pressure cleaning pump.

3. The grating cleaning device according to claim 1, characterized in that: The high-pressure cleaning pipe and the medium-pressure cleaning pipe are each equipped with several cleaning nozzles that are inclined toward the grid plate.

4. The grating cleaning device according to claim 1, characterized in that: The high-pressure water supply pipe is connected to a faucet near the internal flow fine screen.

5. The grating cleaning device according to claim 1, characterized in that: The high-pressure cleaning pump is equipped with valves B at both its inlet and outlet ends.

6. The grating cleaning device according to claim 1, characterized in that: A pressure sensor is connected to the high-pressure water supply pipe.

7. The grating cleaning device according to claim 1, characterized in that: The top of the water tank is connected to a water supply pipe, and a valve C is installed on the water supply pipe.

Images