Disassembly-free self-cleaning pump front filtering device

Abstract

The utility model discloses a disassembly-free self-cleaning pump front filtering device, and relates to the field of filtering. The disassembly-free self-cleaning pump front filtering device comprises a filtering shell provided with a filtering cavity, a filtering net plate arranged in the filtering shell and a cleaning brush extending in the width direction of the filtering net plate, the filtering net plate divides the filtering cavity into a liquid inlet cavity and a liquid outlet cavity, and the filtering shell is provided with a liquid inlet pipe and a liquid outlet pipe which are communicated with the liquid inlet cavity and the liquid outlet cavity respectively. A blow-off pipe communicated with the liquid inlet cavity is arranged at the bottom of the filter shell, the cleaning brush is arranged in the liquid inlet cavity and abuts against the side, facing the liquid inlet cavity, of the filter screen plate, the cleaning brush is connected with a driving mechanism used for driving the cleaning brush to extend in the length direction of the filter screen plate, and the liquid outlet cavity is provided with a screen flushing pipe extending in the length direction of the filter screen plate. The top of the screen flushing pipe penetrates out of the top of the filter shell and is connected with a screen flushing valve, and a plurality of flushing jet holes facing the filter screen plate are formed in the screen flushing pipe. The disassembly-free self-cleaning pump front filtering device can quickly and efficiently perform double-sided matched cleaning on the filter screen.

Description

Technical Field

[0001] The present application relates to the field of filtration, and in particular to a disassembly-free self-cleaning pre-pump filter device. Background Art

[0002] The crude oil extraction process includes many links such as oil production, gathering, transportation, storage and transportation, and water injection. During the gathering, storage and transportation of crude oil, the delivery pump is used as the power to provide the oil-water medium. However, various impurities such as wax blocks, mud, rust, etc. will inevitably exist in the transportation process, resulting in the deterioration of the service condition of the delivery pump. In order to improve the operating efficiency of the delivery pump and extend its service life, the medium needs to pass through a filter to remove impurities before entering the delivery pump.

[0003] Traditional pre-pump filters are usually upward-opening, bar-type filters. After long-term use, the filters will become clogged and the filter mesh openings will become smaller. If not cleaned and maintained in time, it will lead to a series of problems such as increased medium flow loss, reduced or no liquid inlet, and reduced operating efficiency due to pump heating. However, due to structural limitations of the filter, it is impossible to discharge impurities by itself without removing the cover. It can only be cleaned manually by the operator on a regular basis, resulting in high labor intensity and low work efficiency. Utility Model Content

[0004] The purpose of the present application is to provide a disassembly-free self-cleaning pre-pump filter device, which can quickly and efficiently clean the double-sided filter screen, thereby realizing disassembly-free maintenance of the filter screen.

[0005] This application is implemented as follows:

[0006] The present application provides a disassembly-free self-cleaning pump pre-filter device, which includes a filter housing provided with a filter cavity, a filter screen plate provided in the filter housing, and a cleaning brush extending along the width direction of the filter screen plate. The filter screen plate divides the filter cavity into a liquid inlet cavity and a liquid outlet cavity. The filter housing is respectively provided with a liquid inlet pipe and a liquid outlet pipe connected to the liquid inlet cavity and the liquid outlet cavity. The bottom of the filter housing is provided with a sewage pipe connected to the liquid inlet cavity. The cleaning brush is provided in the liquid inlet cavity and presses the filter screen plate toward the liquid inlet cavity. The cleaning brush is connected to a driving mechanism for driving it to extend along the length direction of the filter screen plate. A screen flushing pipe extending along the length direction of the filter screen plate is provided in the liquid outlet cavity. The top of the screen flushing pipe passes through the top of the filter housing and is connected to a screen flushing valve. The screen flushing pipe is provided with multiple flushing spray holes facing the filter screen plate.

[0007] In some optional embodiments, an opening is provided on the top of the filter housing, and a top cover plate for closing the opening is connected to the filter housing via a plurality of bolts.

[0008] In some optional embodiments, at least one handle is connected to the top of the top cover.

[0009] In some optional embodiments, the driving mechanism includes a screw rod that penetrates the cleaning brush through a thread, and the top of the screw rod penetrates the outside of the top of the filter housing through a thread and is connected to a rotating handle.

[0010] In some optional embodiments, each flushing jet hole extends along the circumference of the screen flushing pipe, and the plurality of flushing jet holes are arranged at intervals along the axial direction of the screen flushing pipe.

[0011] In some optional embodiments, a cleaning brush flushing pipe extending along the width direction of the filter screen is fixedly provided in the liquid inlet chamber, the cleaning brush flushing pipe is connected to a flushing water supply pipe passing through the filter shell, a plurality of cleaning brush flushing holes are opened on the side of the cleaning brush flushing pipe, and a flushing water supply valve is provided on the flushing water supply pipe; when the cleaning brush moves along the length direction of the filter screen to the bottom of the liquid inlet chamber, each cleaning brush flushing hole is aligned with the top of the cleaning brush.

[0012] In some optional embodiments, a plurality of tank flushing holes are provided at the bottom of the cleaning brush flushing pipe.

[0013] In some optional embodiments, a drain valve is provided on the drain pipe.

[0014] The beneficial effects of the present application are as follows: the disassembly-free self-cleaning pump pre-filter device provided by the present application comprises a filter housing with a filter cavity therein, a filter screen plate provided in the filter housing, and a cleaning brush extending along the width direction of the filter screen plate, the filter screen plate divides the filter cavity into a liquid inlet cavity and a liquid outlet cavity, the filter housing is provided with a liquid inlet pipe and a liquid outlet pipe connected to the liquid inlet cavity and the liquid outlet cavity respectively, the bottom of the filter housing is provided with a sewage pipe connected to the liquid inlet cavity, the cleaning brush is provided in the liquid inlet cavity and presses the filter screen plate toward the liquid inlet cavity, the cleaning brush is connected to a driving mechanism for driving it to extend along the length direction of the filter screen plate, a screen flushing pipe extending along the length direction of the filter screen plate is provided in the liquid outlet cavity, the top of the screen flushing pipe passes through the top of the filter housing and is connected to a screen flushing valve, and a plurality of flushing spray holes facing the filter screen are provided on the screen flushing pipe. The disassembly-free self-cleaning pump pre-filter device provided by the present application can quickly and efficiently clean the filter screen on both sides, thereby realizing the disassembly-free maintenance of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1A partial perspective structural diagram of the disassembly-free self-cleaning pump pre-filter device provided in Example 1 of the present application;

[0017] Figure 2 A schematic diagram of the partial structure of the disassembly-free self-cleaning pre-pump filter device provided in Example 1 of the present application;

[0018] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the disassembly-free self-cleaning pre-pump filter device provided in Example 2 of the present application.

[0019] In the figure: 100, filter housing; 110, filter chamber; 120, filter screen; 130, cleaning brush; 140, liquid inlet chamber; 150, liquid outlet chamber; 160, liquid inlet pipe; 170, liquid discharge pipe; 180, sewage pipe; 190, screen flushing pipe; 200, screen flushing valve; 210, flushing spray hole; 220, opening; 230, bolt; 240, top cover; 250, handle; 260, screw rod; 270, rotating handle; 280, cleaning brush flushing pipe; 290, flushing water supply pipe; 300, cleaning brush flushing hole; 310, flushing water supply valve; 320, tank flushing hole; 330, sewage valve. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0025] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0027] The features and performance of the disassembly-free self-cleaning pre-pump filter device of the present application are further described in detail below in conjunction with the embodiments.

[0028] Example 1

[0029] like Figure 1 and Figure 2As shown, the embodiment of the present application provides a disassembly-free self-cleaning pre-pump filter device, which includes a cylindrical filter housing 100 with a filter chamber 110 therein, a filter screen plate 120 vertically arranged in the filter housing 100, and a cleaning brush 130 extending along the width direction of the filter screen plate 120. The top of the filter housing 100 is provided with an opening 220, and the filter housing 100 is connected to a top cover plate 240 for closing the opening 220 by eight bolts 230 arranged at intervals along its circumference. The filter screen plate 120 divides the filter chamber 110 into a liquid inlet chamber 140 and a liquid outlet chamber 150 arranged on the left and right. Both sides of the filter housing 100 are respectively provided with a liquid inlet chamber 140 and a liquid outlet chamber 150 communicating with the liquid inlet chamber 140 and the liquid outlet chamber 150. The liquid inlet pipe 160 and the liquid discharge pipe 170, the bottom of the filter housing 100 is provided with a drain pipe 180 connected to the liquid inlet chamber 140, and the drain pipe 180 is provided with a drain valve 330. The cleaning brush 130 is arranged in the liquid inlet chamber 140 and presses the filter screen plate 120 toward the side of the liquid inlet chamber 140. The cleaning brush 130 is connected to a driving mechanism for driving it to extend along the length direction of the filter screen plate 120. The driving mechanism includes a screw rod 260 that penetrates the cleaning brush 130 through a thread. The top of the screw rod 260 penetrates through the thread to the outside of the top of the filter housing 100 and is connected to a rotating handle 270. The top of the top cover plate 240 is connected to two handles 250 symmetrically arranged on both sides of the screw rod 260.

[0030] A screen flushing pipe 190 extending along the length direction of the filter screen plate 120 is provided in the liquid outlet cavity 150. The top of the screen flushing pipe 190 passes through the top of the filter housing 100 and is connected to a screen flushing valve 200. Eight flushing spray holes 210 facing the filter screen plate 120 are provided on the screen flushing pipe 190. Each flushing spray hole 210 extends along the circumference of the screen flushing pipe 190, and the eight flushing spray holes 210 are arranged at intervals along the axial direction of the screen flushing pipe 190.

[0031] The working principle of the disassembly-free self-cleaning pre-pump filter device provided in the embodiment of the present application is that the user connects the liquid inlet pipe 160 and the liquid discharge pipe 170 of the filter housing 100 with the delivery pipe respectively, so that the crude oil enters the liquid inlet chamber 140 of the filter housing 100 through the upstream delivery pipe through the liquid inlet pipe 160, passes through the filter screen 120 and enters the liquid outlet chamber 150 for filtration, and the filtered crude oil passes through the liquid outlet chamber 150 and the liquid discharge pipe 170 into the downstream delivery pipe for storage or further delivery. When the filter screen 120 needs to be cleaned after use for a period of time, the liquid inlet pipe 160 and the discharge pipe 170 are cut off and the drain valve 330 is opened. The operator holds the rotating handle 270 by hand and rotates it to drive the screw rod 260 to rotate, thereby driving the cleaning brush 130 which is threadedly sleeved on the screw rod 260 to move along the screw rod 260, and uses the cleaning brush 130 along the length direction of the screw rod 260 and the filter screen 120 to move along the length direction of the screw rod 260 and the filter screen 120. The movable cleaning brush 130 cleans the side of the filter screen plate 120 facing the liquid inlet chamber 140, so that the cleaning brush 130 scrapes off the dirt and impurities on the side of the filter screen plate 120 facing the liquid inlet chamber 140 and discharges them through the drain valve 330. At the same time, the operator can open the screen flushing valve 200 to introduce high-pressure water or high-pressure gas into the screen flushing pipe 190, so that the high-pressure water or high-pressure gas introduced into the screen flushing pipe 190 is sprayed out through each flushing injection hole 210 to the side of the filter screen plate 120 facing the liquid outlet chamber 150, thereby using high-pressure water or high-pressure gas to flush and flush the dirt blocking the mesh holes on the filter screen plate 120 to the bottom of the liquid inlet chamber 140 and discharge it through the drain pipe 180, thereby realizing a double cleaning operation of the filter screen plate 120. After cleaning, the drain valve 330 and the screen flushing valve 200 are cut off and the liquid inlet pipe 160 and the drain pipe 170 are reconnected to resume the filtering operation.

[0032] The filter housing 100 is connected to a top cover plate 240 for closing the opening 220 by bolts 230. The top of the top cover plate 240 is connected to two handles 250 symmetrically arranged on both sides of the screw rod 260, which can facilitate personnel to loosen the bolts 230 and hold the handles 250 to lift the top cover plate 240 when needed to open the opening 220 at the top of the filter housing 100 to maintain and inspect the interior of the filter housing 100.

[0033] Example 2

[0034] like Figure 3As shown, the embodiment of the present application provides a non-removable self-cleaning pre-pump filter device, which has a substantially similar structure to the non-removable self-cleaning pre-pump filter device provided in Example 1, with the difference being that in this embodiment, a cleaning brush flushing pipe 280 extending along the width of the filter screen plate 120 is fixedly provided at the bottom of the liquid inlet chamber 140. The cleaning brush flushing pipe 280 is connected to a flushing water supply pipe 290 that passes through the filter housing 100. The side of the cleaning brush flushing pipe 280 is provided with eight cleaning brush flushing holes 300 spaced along its length. The flushing water supply pipe 290 is provided with a flushing water supply valve 310. When the cleaning brush 130 moves along the length of the filter screen plate 120 to the bottom of the liquid inlet chamber 140, each cleaning brush flushing hole 300 is aligned with the top of the cleaning brush 130. Eight tank flushing holes 320 spaced along its length are provided on both sides of the bottom of the cleaning brush flushing pipe 280.

[0035] The non-disassembly self-cleaning pump pre-filter device provided in the embodiment of the present application is fixed with a cleaning brush flushing pipe 280 extending along the width direction of the filter screen plate 120 in the liquid inlet chamber 140, and the cleaning brush flushing pipe 280 is connected to a flushing water supply pipe 290 that passes through the filter housing 100. After the filter screen plate 120 is scrubbed and cleaned with the cleaning brush 130 multiple times, the top of the cleaning brush 130 may remain with adhered dirt and impurities that need to be cleaned. At this time, the rotating handle 270 can be controlled to rotate to drive the screw rod 260 to rotate and drive the cleaning brush 130 to move along the screw rod 260 to the bottom of the liquid inlet chamber 140, and the flushing supply can be controlled. The flushing water supply valve 310 provided on the water pipe 290 is opened, and the flushing water is passed into the cleaning brush flushing pipe 280 through the flushing water supply pipe 290, and the flushing water is sprayed to the top of the cleaning brush 130 through the eight cleaning brush flushing holes 300 provided on the side of the cleaning brush flushing pipe 280 for cleaning, and the dirt adhered and accumulated on the top of the cleaning brush 130 is flushed to the bottom of the liquid inlet cavity 140 and discharged through the drain pipe 180. At the same time, the flushing water passes through the cleaning brush flushing pipe 280 and is ejected to the bottom wall of the liquid inlet cavity 140 through the tank flushing hole 320 at the bottom of the cleaning brush flushing pipe 280 for flushing, and the flushing water is discharged through the bottom drain pipe 180.

[0036] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

Claims

1. A disassembly-free self-cleaning pump pre-filter device, characterized in that: The filter housing has a filter housing, and a filter housing has a filter housing, wherein the filter housing has a filter housing, and the filter housing has a filter housing. The filter housing has a filter housing, and the filter housing has a filter housing. The filter housing has a filter housing, and the filter housing has a filter housing. The filter housing has a filter housing, and the filter housing has a filter housing.

2. The disassembly-free self-cleaning pre-pump filter device according to claim 1, characterized in that: The top of the filter housing is provided with an opening, and the filter housing is connected to a top cover plate for closing the opening via a plurality of bolts.

3. The disassembly-free self-cleaning pre-pump filter device according to claim 2, characterized in that: At least one handle is connected to the top of the top cover.

4. The disassembly-free self-cleaning pre-pump filter device according to claim 1, characterized in that: The driving mechanism includes a screw rod that penetrates the cleaning brush through a thread, and the top of the screw rod penetrates the outside of the top of the filter housing through a thread and is connected to a rotating handle.

5. The disassembly-free self-cleaning pre-pump filter device according to claim 1, characterized in that: Each of the flushing spray holes extends along the circumference of the screen flushing pipe, and a plurality of the flushing spray holes are arranged at intervals along the axial direction of the screen flushing pipe.

6. The disassembly-free self-cleaning pre-pump filter device according to claim 1, characterized in that: A cleaning brush flushing pipe extending along the width direction of the filter screen is fixedly provided in the liquid inlet cavity, the cleaning brush flushing pipe is connected to a flushing water supply pipe passing through the filter housing, a plurality of cleaning brush flushing holes are provided on the side of the cleaning brush flushing pipe, and a flushing water supply valve is provided on the flushing water supply pipe; when the cleaning brush moves along the length direction of the filter screen to the bottom of the liquid inlet cavity, each of the cleaning brush flushing holes is aligned with the top of the cleaning brush.

7. The disassembly-free self-cleaning pre-pump filter device according to claim 6, characterized in that: A plurality of tank flushing holes are provided at the bottom of the cleaning brush flushing pipe.

8. The disassembly-free self-cleaning pre-pump filter device according to claim 1, characterized in that: The sewage pipe is provided with a sewage valve.

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