Spiral self-cleaning flow guide filter

Abstract

The application discloses a spiral self-cleaning flow guide filter, which comprises a body, an inlet pipeline arranged at the top of the body, outlet pipelines arranged at the two sides of the body respectively, and detachable end portions; double spiral flow guide pieces are arranged in the body, and filter screens are fixed to the outer sides of the double spiral flow guide pieces; a cleaning device is arranged at the bottom of the body, the cleaning device comprises a funnel and a straight pipe, a first gate valve is arranged between the funnel and the straight pipe, and a second gate valve is arranged at the position, away from the funnel, of the straight pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filter, in particular to a spiral self-cleaning flow guide filter. BACKGROUND

[0002] Filter is an indispensable device on the pipeline of medium conveying, usually installed at the inlet of pressure reducing valve, pressure relief valve, water pump and refrigeration host and other devices which need to filter out impurities in medium. The conventional filter is composed of cylinder, stainless steel filter screen and blowdown part. After the water to be treated passes through the filter screen of the filter, the impurities are blocked, when cleaning is needed, only the detachable filter cartridge is taken out, and then reloaded after treatment, therefore, the use and maintenance are extremely convenient.

[0003] However, many problems occur in the use of the existing filter, among which the more prominent one is that the filter screen needs to be cleaned frequently due to frequent continuous operation, and the resistance of the filter is particularly large during cleaning of the filter screen. The commonly used Y-type filter has large resistance when the filter screen is just put into use due to structural reasons. This greatly affects the work efficiency, and the filter needs to be disassembled and the filter screen needs to be taken out during the cleaning process, which further increases the workload of the workers and further reduces the work efficiency. Moreover, the cleaning filter screen system cannot operate normally, and the water in it needs to be emptied. This also affects the production. Especially in some special places where operation cannot be stopped, bypass devices must be set, which increases the investment. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a spiral self-cleaning flow guide filter, which can prevent dust from adhering to the filter screen by the self-rotation of the filter screen driven by the flow guide piece, greatly reducing the operating resistance of the filter, and achieving cleaning of impurities in the filter without stopping.

[0005] In order to solve the above technical problems, the present application provides a spiral self-cleaning flow guide filter, comprising a body, an inlet pipe is arranged at the top of the body, outlet pipes and detachable end parts are arranged at both sides of the body; a double spiral flow guide piece is arranged inside the body, a filter screen is fixed outside the double spiral flow guide piece; a cleaning device is arranged at the bottom of the body, the cleaning device comprises a funnel and a straight pipe, a first gate valve is arranged between the funnel and the straight pipe, a second gate valve is arranged at the position of the straight pipe away from the funnel.

[0006] Further, the body and the end part constitute a cylindrical structure with arc-shaped protrusions on both sides.

[0007] Further, the filter screen is fixed on the double spiral flow guide piece by spot welding.

[0008] Further, a pressure gauge is arranged at the inlet pipe and the outlet pipe.

[0009] Further, the body is symmetrically provided with a first shaft sleeve and a second shaft sleeve, and a rotating shaft is arranged between the first shaft sleeve and the second shaft sleeve, and the double helix flow guide is fixed on the rotating shaft, the first shaft sleeve and the second shaft sleeve.

[0010] Further, the first shaft sleeve is arranged in the end portion.

[0011] Further, the second shaft sleeve is arranged between the body and the outlet pipe.

[0012] Further, the rotating shaft is a hollow shaft.

[0013] Further, the end portion and the body are connected through a flange.

[0014] The present application has the following advantages: 1. The double helix flow guide is rotated by water flow, and the filter screen is rotated, so that impurities cannot deposit on the filter screen, and the filter resistance is always kept low, and the filtering efficiency is increased.

[0015] 2. The double helix flow guide is rotated by water flow, and the water flow is changed from disorderly turbulent flow to orderly rotation according to the helix, so that the water resistance is significantly reduced, and the cavitation of the water pump is also reduced when the water pump is installed at the inlet.

[0016] 3. The impurities filtered out (small things blocked by the filter screen in some pipes) are deposited at the bottom of the body, that is, in the funnel at the bottom of the body, and the impurities can be removed without stopping the machine by opening the first gate valve, knocking the funnel and the straight pipe wall to make the impurities enter the straight pipe between the first gate valve and the second gate valve, closing the first gate valve and opening the second gate valve, and knocking the straight pipe wall to remove the impurities, so that the overall operation efficiency of the filter is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application.

[0018] Explanation of reference numerals in the drawing: 1, body; 2, inlet pipe; 3, outlet pipe; 4, end portion; 5, double helix flow guide; 6, filter screen; 7, funnel; 8, straight pipe; 9, first gate valve; 10, second gate valve; 11, pressure gauge; 12, first shaft sleeve; 13, second shaft sleeve; 14, rotating shaft; 15, flange. DETAILED DESCRIPTION

[0019] The present application will be further described below with reference to the drawings and specific examples, so that those skilled in the art can better understand the present application and implement it, but the examples are not intended to limit the present application.

[0020] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0021] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0022] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0024] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, when a member is referred to as being "coupled" or "connected" to another member, it can be directly coupled or connected to the other member or intervening members can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Expressions such as "at least one of," when preceding the syllables of a list of elements, modify the entire list of elements and do not modify the elements individually.

[0025] Referring to Figure 1 As shown in the figure, an embodiment of the spiral self-cleaning flow guide filter of the present application comprises a body 1, an inlet pipe 2 arranged at the top of the body 1, an outlet pipe 3 arranged at each side of the body 1, and a detachable end part 4; a double helix flow guide piece 5 is arranged inside the body 1, a filter screen 6 is fixed to the outside of the double helix flow guide piece 5, and the filter screen 6 is fixed to the double helix flow guide piece 5 by spot welding; a cleaning device is arranged at the bottom of the body 1, and the cleaning device comprises a funnel 7 and a straight pipe 8; a first gate valve 9 is arranged between the funnel 7 and the straight pipe 8; and a second gate valve 10 is arranged at the position of the straight pipe 8 away from the funnel 7.

[0026] In use, the double helix flow guide piece 5 is rotated by water flow impact, driving the filter screen 6 to rotate by itself, so that impurities cannot deposit on the filter screen 6, and the filter resistance is always kept at a low resistance, increasing the filtering efficiency; the double helix flow guide piece 5 is rotated by water flow impact, so that the water flow changes from disordered turbulent flow to ordered flow according to the rotation of the helix, thereby significantly reducing the resistance; the filtered impurities (small things blocked by the filter screen 6 in some pipes) are deposited at the bottom of the body 1, i.e. in the funnel 7 at the bottom of the body 1, and the impurities can be discharged by first opening the first gate valve 9, knocking the pipe wall of the funnel 7 and the straight pipe 8 below to make the impurities enter the straight pipe 8 between the first gate valve 9 and the second gate valve 10, then closing the first gate valve 9 and opening the second gate valve 10, and knocking the pipe wall of the straight pipe 8 to discharge the impurities, so that the impurities on the filter screen 6 can be cleaned without stopping the machine, and the overall operation efficiency of the filter is improved.

[0027] The body 1 and the end part 4 form a cylindrical structure with arc-shaped protrusions on both sides, which is stable and not easy to damage.

[0028] Pressure gauges 11 are arranged at the inlet pipe 2 and the outlet pipe 3, so that the resistance change of the filter can be observed, and it can be judged whether the impurities need to be cleaned and whether the filter needs to be disassembled for deep cleaning. In the experimental stage, high-precision differential pressure sensors are connected to the interfaces of the two pressure gauges 11 to accurately measure the resistance coefficient of the flow guide filter, providing a scientific calculation basis for selecting a reasonable water pump head in future engineering design.

[0029] In addition to the flange connection, the detachable end part 4 and the filter body 1 can also be connected by a quick-release buckle and a quick flange.

[0030] The first shaft sleeve 12 is arranged in the end part 4, and the second shaft sleeve 13 is arranged between the body 1 and the outlet pipe 3. The first shaft sleeve 12 and the second shaft sleeve 13 are arranged with a rotating shaft 14, which is a hollow shaft. The double helix guide vane 5 is fixed on the rotating shaft 14, the first shaft sleeve 12 and the second shaft sleeve 13. First, it is determined that the filter screen 6 also completely covers the line from the inlet pipe 2 to the outlet pipe 3, which ensures the filtering quality. At the same time, the rotating shaft 14 drives the double helix guide vane 5 to rotate, which is a simple and practical physical structure.

[0031] The end part 4 and the body 1 are connected by the flange 15, which can completely clean the impurities of the filter screen 6 and also can repair the filter screen 6 of the guide filter, which is very convenient.

[0032] The above-mentioned embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. The equivalent substitutions or transformations made by the person skilled in the art on the basis of the present application are within the protection scope of the present application. The protection scope of the present application is subject to the claims.

Claims

1. A helical self-cleaning flow guiding filter, characterized in that, The utility model relates to a kind of water filter, including body, the top of the body is provided with inlet pipe, the both sides of the body are respectively provided with outlet pipe and detachable end part; The body is internally provided with double helix guide vane, the outer side of the double helix guide vane is fixed with filter screen; The bottom of the body is provided with cleaning device, the cleaning device includes hopper and straight pipe, first gate valve is arranged between the hopper and the straight pipe, second gate valve is arranged at the position of the straight pipe away from the hopper; Pressure gauge is arranged at the inlet pipe and outlet pipe;First shaft sleeve and second shaft sleeve are symmetrically arranged in the body, shaft is arranged between the first shaft sleeve and the second shaft sleeve, the double helix guide vane is fixed on the shaft, the first shaft sleeve and the second shaft sleeve;The first shaft sleeve is arranged in the end part;The second shaft sleeve is arranged between the body and the outlet pipe;The shaft is hollow shaft;The end part and the body are connected by flange.

2. The helical self-cleaning flow guiding filter according to claim 1, characterized in that, The body and end part form cylindrical structure with arc-shaped protrusions on both sides.

3. The helical self-cleaning flow guiding filter according to claim 1, wherein, The filter screen is fixed on the double helix guide vane by spot welding.

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