Pipeline filtering device

Abstract

The utility model relates to the technical field of filtering devices, and provides a pipeline filtering device which comprises a pipe body, a filter screen and a filter screen cleaning assembly, the filter screen is arranged in the pipe body, the filter screen cleaning assembly comprises at least one filter screen cleaning spray pipe, the filter screen cleaning spray pipe comprises a first pipe section and a second pipe section, the first pipe section is communicated with the second pipe section, the first pipe section is located outside the pipe body and used for being connected with a high-pressure water source, and the second pipe section is located in the pipe body and located on the downstream of the filter screen. And an outlet of the second pipe section faces the filter screen. According to the pipeline filtering device provided by the utility model, the filter screen cleaning component is arranged, the first pipe section of the filter screen cleaning spray pipe can be externally connected with a high-pressure water source, and the second pipe section positioned at the downstream of the filter screen is arranged towards the filter screen, so that the high-pressure water source sprays high-pressure water flow to the filter screen through the filter screen cleaning spray pipe, and back-flushing cleaning is realized, so that the filter screen is cleaned; in the process, the pipe body does not need to be disassembled, the flushing efficiency can be remarkably improved, and the start-stop frequency of the water pump and the disassembly and assembly cleaning frequency of the filter screen are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a pipeline filtering device. Background Art

[0002] A temporary filter for flushing (or simply, a filter) is a device installed at the pump inlet for flushing and high-power pump load testing. Its primary function is to filter impurities from the pipeline medium, preventing them from entering the pump cavity. This prevents pump operation from becoming stuck or even damaging internal components, and further prevents impurities from entering the system.

[0003] However, existing filters need to be removed from the pipeline for cleaning, which leads to frequent disassembly and cleaning during high-power pump load tests. This process not only wastes a lot of time, manpower, and material resources, but also hinders construction progress and increases safety risks during large-scale power equipment test runs. Utility Model Content

[0004] The utility model provides a pipeline filtering device, which is used to solve the defects of the existing filter that it needs to be disassembled and cleaned, and is inconvenient to operate.

[0005] The utility model provides a pipeline filtering device, comprising a pipe body, a filter screen and a filter screen cleaning component.

[0006] The filter is arranged in the pipe body, the filter cleaning assembly includes at least one filter cleaning nozzle, the filter cleaning nozzle includes a first pipe section and a second pipe section, the first pipe section is connected to the second pipe section, the first pipe section is located outside the pipe body and is used to connect to a high-pressure water source, the second pipe section is located in the pipe body and downstream of the filter, and the outlet of the second pipe section is set toward the filter.

[0007] According to the pipeline filtering device provided by the present invention, the filter screen cleaning assembly includes a plurality of the filter screen cleaning nozzles, and the plurality of the filter screen cleaning nozzles are evenly distributed on the pipe body along the circumferential direction.

[0008] According to the pipeline filtering device provided by the utility model, the angle between the second pipe section and the filter screen is 45° to 75°.

[0009] The pipeline filtering device provided by the present invention further includes a dirt baffle, which is slidably matched with the pipe body in the vertical direction to open or close the internal channel of the pipe body, and the dirt baffle is located upstream of the filter.

[0010] According to the pipeline filtering device provided by the utility model, a slide groove is provided on the pipe body, and the dirt baffle is vertically slidably matched with the pipe body through the slide groove.

[0011] According to the pipeline filtering device provided by the utility model, the bottom shape of the dirt baffle is adapted to the inner wall of the pipe body.

[0012] According to the pipeline filtering device provided by the utility model, a slag discharge port is provided at a portion of the pipe body located between the dirt baffle and the filter screen.

[0013] According to the pipeline filtering device provided by the utility model, a slag discharge valve is provided at the slag discharge port.

[0014] According to the pipeline filtering device provided by the utility model, a sealing cover is provided at the inlet end of the first pipe section.

[0015] According to the pipeline filtering device provided by the utility model, connecting flanges are provided at both ends of the pipe body.

[0016] The pipeline filtering device provided by the utility model is provided with a filter cleaning component. When a large amount of impurities accumulate on the filter, the first pipe section of the filter cleaning nozzle can be connected to an external high-pressure water source. Since the second pipe section located downstream of the filter is arranged toward the filter, the high-pressure water source sprays high-pressure water flow toward the filter through the filter cleaning nozzle to achieve backwash cleaning to clean the filter. During this process, there is no need to remove the pipe body, which can significantly improve the flushing efficiency and reduce the number of times the water pump is started and stopped and the filter is disassembled and cleaned, thereby solving the defect that the existing filter needs to be disassembled for cleaning and is inconvenient to operate.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is one of the schematic diagrams of the pipeline filtering device provided by the embodiment of the present utility model.

[0020] Figure 2 This is the second schematic diagram of the pipeline filtering device provided by the embodiment of the present utility model.

[0021] Reference numerals:

[0022] 10. Pipe body; 110. Connecting flange; 120. Slag discharge port; 20. Filter screen; 30. Filter screen cleaning assembly; 310. Filter screen cleaning nozzle; 311. First pipe section; 312. Second pipe section; 320. Sealing cap; 40. Dirt baffle. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0026] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present embodiment. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0028] The pipeline filtering device provided by the present application is described below. Figure 1 And Figure 2 The pipeline filtering device provided by the present application is described below.

[0029] Referring to Figure 1 And Figure 2 The pipeline filtering device provided by the present embodiment of the present application comprises a pipe body 10, a filter screen 20 and a filter screen cleaning assembly 30.

[0030] The filter screen 20 is arranged in the pipe body 10, and the filter screen cleaning assembly 30 comprises at least one filter screen cleaning nozzle 310. The filter screen cleaning nozzle 310 comprises a first pipe section 311 and a second pipe section 312. The first pipe section 311 is in communication with the second pipe section 312. The first pipe section 311 is located outside the pipe body 10 and is used to be connected with a high-pressure water source. The second pipe section 312 is located inside the pipe body 10 and is located downstream of the filter screen 20. The outlet of the second pipe section 312 is arranged towards the filter screen 20.

[0031] Specifically, a water flow channel is formed in the pipe body 10. The outer contour of the filter screen 20 is the same as the cross section of the water flow channel of the pipe body 10, so as to filter the impurities in the water flow. After the filter screen 20 is used for a certain period of time, the impurities will be attached and accumulated on the upstream of the filter screen 20, causing the water flow to be blocked. Therefore, it is necessary to clean it regularly.

[0032] The pipeline filtering device provided by the present application is described below.

[0033] In the filter cleaning assembly 30, there is at least one filter cleaning nozzle 310, which can be single or multiple. When there is only one filter cleaning nozzle 310, a mist nozzle can be installed at the outlet of the second pipe section 312 to spray the high-pressure water in a mist form, thereby covering a larger cleaning area. When there are multiple filter cleaning nozzles 310, the multiple filter cleaning nozzles 310 can spray high-pressure water at different parts of the filter 20, thereby ensuring the cleaning effect of the filter 20. Of course, when there are multiple filter cleaning nozzles 310, a mist nozzle can also be installed at the outlet of the second pipe section 312 to spray the high-pressure water in a mist form.

[0034] Both ends of the tube body 10 are provided with connecting flanges 110 , and the filter device can be integrally installed and connected to the pipeline through the connecting flanges 110 . The filter device has a simple structure, is easy to assemble and disassemble, and has strong stability.

[0035] See also Figure 1 and Figure 2 As shown, according to a preferred embodiment of the present invention, the filter cleaning assembly 30 includes a plurality of filter cleaning nozzles 310 , and the plurality of filter cleaning nozzles 310 are evenly distributed on the pipe body 10 along the circumferential direction.

[0036] By evenly distributing a plurality of filter cleaning nozzles 310 along the circumference of the tube body 10 , high-pressure water can be sprayed on different parts of the filter 20 for cleaning through the plurality of filter cleaning nozzles 310 , thereby significantly improving the cleaning efficiency and cleaning effect.

[0037] In specific implementation, the high-pressure water source can be connected to multiple filter cleaning nozzles 310 at the same time through a multi-way joint. As an example, in this embodiment, four cleaning nozzles are evenly distributed along the circumference of the pipe body 10.

[0038] See also Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the angle between the second pipe section 312 and the filter screen 20 is 45° to 75°.

[0039] By setting the angle between the second pipe section 312 and the filter 20 to 45° to 75°, the high-pressure water flow sprayed by the multiple filter cleaning nozzles 310 evenly distributed circumferentially can cover a larger cleaning area, thereby improving the cleaning effect of the filter 20.

[0040] Specifically, the angle between the second pipe section 312 and the filter screen 20 can be set to 45°, 60°, or 75°.

[0041] See also Figure 1 and Figure 2As shown, according to some embodiments of the present invention, the pipeline filtering device further includes a dirt baffle 40, which is slidably engaged with the pipe body 10 in the vertical direction to open or close the internal passage of the pipe body 10. The dirt baffle 40 is located upstream of the filter screen 20. By providing the dirt baffle 40, impurities washed off the filter screen 20 by the filter screen cleaning nozzle 310 can be intercepted, preventing the impurities from entering the rest of the system with the water flow.

[0042] Specifically, when the system is operating normally, the dirt shield 40 is raised, and water can flow normally through the pipe body 10. When the filter 20 needs to be cleaned, the dirt shield 40 is lowered, and the dirt shield 40 can intercept the impurities washed off the filter 20 and accumulate them between the dirt shield 40 and the filter 20, making it easier to clean them.

[0043] Preferably, a slide groove is provided on the tube body 10 in this embodiment, and the dirt blocking plate 40 is vertically slidably engaged with the tube body 10 through the slide groove.

[0044] Specifically, the bottom of the chute is located on the central horizontal plane of the tube body 10, the width of the upper part of the dirt baffle 40 is the same as the inner diameter of the tube body 10, and the bottom shape of the dirt baffle 40 is adapted to the inner wall of the tube body 10 (it is an arc shape), so that when the dirt baffle 40 is lowered into the tube body 10 through the chute, the interior of the tube body 10 can be bent and sealed, thereby improving the dirt blocking effect.

[0045] In some embodiments, a sealing gasket may be provided on the inner wall of the slide groove to ensure that the tube body 10 is in a sealed state when the dirt shielding plate 40 slides.

[0046] See also Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, a slag discharge port 120 is provided at a portion of the tube body 10 between the dirt baffle 40 and the filter screen 20 .

[0047] By providing a slag discharge port 120 at a portion of the tube body 10 between the dirt baffle 40 and the filter screen 20 , impurities can be discharged through the slag discharge port 120 after the filter screen 20 is cleaned.

[0048] Specifically, the slag discharge port 120 is provided at the bottom of the tube body 10 . When the slag discharge port 120 is opened, impurities can fall down due to their own gravity.

[0049] In some embodiments, when the thickness of the tube body 10 allows, an inclined guide surface can be provided on the periphery of the slag discharge port 120 so that impurities can be gathered at the slag discharge port 120 through the guide surface, thereby improving the slag discharge effect.

[0050] According to some embodiments of the present invention, a slag discharge valve is provided at the slag discharge port 120 .

[0051] By providing a slag discharge valve at the slag discharge port 120, the slag discharge valve can be used to open or close the slag discharge port 120. When the system is operating normally or the filter screen 20 is being cleaned, the slag discharge valve controls the slag discharge port 120 to be in a closed state. When the filter screen 20 is cleaned and slag needs to be discharged, the slag discharge valve can be used to open the slag discharge port 120 to discharge impurities to the outside through the slag discharge port 120.

[0052] The slag discharge valve can be manual or electric valve.

[0053] See also Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, a sealing cover 320 is provided at the inlet end of the first pipe section 311 .

[0054] By setting a sealing cover 320 at the inlet end of the first pipe section 311, when the system is operating normally, the inlet end of the first pipe section 311 can be sealed by the sealing cover 320 to ensure the normal operation of the system. When the filter 20 needs to be cleaned, the sealing cover 320 can be opened and the external high-pressure water source of the first pipe section 311 can be used.

[0055] The working principle of the pipeline filter device provided by the utility model is described in detail below. Figure 1 and Figure 2 shown.

[0056] When the filter 20 (if blocked) needs to be cleaned, the system pump is stopped, the filter cleaning nozzle 310 is connected to an external high-pressure water source (the water quality of the high-pressure water source is consistent with the mainstream water quality of the system or does not affect the mainstream water quality), the dirt baffle 40 is lowered, and the slag discharge valve controls the slag discharge port 120 to be in a closed state.

[0057] Turn on the high-pressure water source and backwash the filter 20 through the filter cleaning nozzle 310. When the filter 20 is cleaned, impurities accumulate between the dirt baffle 40 and the filter 20. At this time, the slag discharge valve controls the slag discharge port 120 to open. After the impurities are discharged through the slag discharge port 120, the slag discharge valve controls the slag discharge port 120 to close.

[0058] Lift the dirt shielding plate 40 to open the main flow channel of the pipe body 10 , disconnect the filter cleaning nozzle 310 from the high-pressure water source, and then cover the first pipe section 311 of the filter cleaning nozzle 310 with the sealing cover 320 .

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A pipeline filtering device, characterized in that: include: Tube body, filter screen and filter screen cleaning assembly; The filter is arranged in the pipe body, the filter cleaning assembly includes at least one filter cleaning nozzle, the filter cleaning nozzle includes a first pipe section and a second pipe section, the first pipe section is connected to the second pipe section, the first pipe section is located outside the pipe body and is used to connect to a high-pressure water source, the second pipe section is located in the pipe body and downstream of the filter, and the outlet of the second pipe section is set toward the filter.

2. The pipeline filtering device according to claim 1, characterized in that: The filter screen cleaning assembly includes a plurality of the filter screen cleaning nozzles, and the plurality of the filter screen cleaning nozzles are evenly distributed on the pipe body along the circumferential direction.

3. The pipeline filtering device according to claim 2, characterized in that: The included angle between the second pipe section and the filter screen is 45° to 75°.

4. The pipeline filtering device according to claim 1, characterized in that: It also includes a dirt baffle, which is slidably matched with the tube body in the vertical direction to open or close the internal channel of the tube body, and the dirt baffle is located upstream of the filter.

5. The pipeline filtering device according to claim 4, characterized in that: The tube body is provided with a slide groove, and the dirt blocking plate is vertically slidably matched with the tube body through the slide groove.

6. The pipeline filtering device according to claim 4, characterized in that: The bottom shape of the dirt baffle is adapted to the inner wall of the tube body.

7. The pipeline filtering device according to claim 4, characterized in that: The portion of the tube body between the dirt baffle and the filter screen is provided with a slag discharge port.

8. The pipeline filtering device according to claim 7, characterized in that: A slag discharge valve is provided at the slag discharge port.

9. The pipeline filtering device according to any one of claims 1 to 8, characterized in that: A sealing cover is provided at the inlet end of the first pipe section.

10. The pipeline filtering device according to any one of claims 1 to 8, characterized in that: Both ends of the pipe body are provided with connecting flanges.

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