A new type of automatic filter backwashing device

Abstract

The present invention provides a novel automatic filter backwashing device, which relates to the field of pumps, including a fixed cylinder, a deep well submersible pump connected to the top of the fixed cylinder, the deep well submersible pump electrically connected to a control box fixedly connected to the end of the fixed cylinder, the bottom of the deep well submersible pump is connected to a valve box through a connecting pipe, the side of the valve box is respectively connected to the filter and the connecting pipes connected to the top of the deep well submersible pump, a valve plug is rotatably connected inside the valve box, the valve plug is connected to a driving device, the driving device is electrically connected to the control box, and a filter is arranged inside the filter. In the present invention, it can not only ensure water supply efficiency, but also can backwash without disassembling the filter, which is efficient, convenient and labor-saving; it does not require multiple valve controls, the control circuit is simple; and the driving structure is concise.

Description

Technical Field

[0001] The invention relates to the field of pumps, and in particular to a novel automatic filter screen backwashing device. Background Art

[0002] The deep well submersible pump has the advantages of simple structure, high unit efficiency, low noise, safe and reliable operation, and convenient installation and maintenance. It is suitable for extracting water from deep wells, hot water wells and oceans, and can also be used for extraction from rivers, reservoirs, canals, etc.: it is mainly used for farmland irrigation and water for people and livestock in plateaus and mountainous areas, and can also be used for water supply and drainage in cities, factories, railways, mines, and construction sites. Since the water sources extracted by deep well submersible pumps are different, the solids in the water source are easily sucked into the submersible pump by the suction of deep well submersible pumps, which can easily damage the submersible pumps. Therefore, it is often used in conjunction with a filter. However, since the filter screen of the filter will be blocked after filtering a certain amount of debris, affecting the filtering effect and pumping rate, the filter screen needs to be cleaned regularly. The existing technology mostly uses backwashing to clean the filter screen, so that water enters from the outlet end of the filter and flows out from the inlet end, so that the debris on the filter screen is discharged from the entry path.

[0003] However, the filter part of the existing backwashing device needs to be disassembled and cleaned, which is relatively laborious, and multiple electric valves are used on a single water pump, and the circuit for controlling the opening or closing of the valve is complicated. Summary of the invention

[0004] The purpose of the present invention is to provide a novel automatic filter screen backwashing device to solve the above technical problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a new type of automatic filter backwashing device, including a fixed cylinder, a deep well submersible pump is connected above the fixed cylinder, the deep well submersible pump is electrically connected to a control box fixedly connected to the end of the fixed cylinder, the bottom of the deep well submersible pump is connected to the valve box through a connecting pipe, the side of the valve box is respectively connected to the filter and the connecting pipes connected to the top of the deep well submersible pump, a valve plug is rotatably connected inside the valve box, the valve plug is connected to a driving device, the driving device is electrically connected to the control box, and a filter is arranged in the filter.

[0006] Preferably, three deep well submersible pumps are connected to the top of the fixed cylinder, and each of the deep well submersible pumps is connected to a valve box respectively.

[0007] Preferably, the three valve boxes are respectively provided with rotatably connected valve plugs, and the three valve plugs are fixedly connected by a connecting shaft that passes through the axis of the valve box. The connecting shaft is fixedly connected to the shaft of the driving motor, and the driving motor is electrically connected to the control box.

[0008] Preferably, the valve plug is shaped like a fan-shaped column, the inner side of the valve plug is fixedly connected to the connecting shaft, and the outer side of the valve plug is in contact with the inner side of the valve box.

[0009] Preferably, the side surface of the valve box is respectively provided with a first through hole connected to the bottom end of the deep well submersible pump, a second through hole connected to the top end of the deep well submersible pump, and a third through hole connected to the filter.

[0010] Preferably, the diameter of the first through hole is larger than the width of the valve plug, and the diameters of the second through hole and the third through hole are smaller than the width of the valve plug.

[0011] The beneficial effects of the present invention are:

[0012] In the present invention, firstly, three deep well submersible pumps are arranged on a fixed cylinder, and any two of the three deep well submersible pumps are controlled to work by a controller, and the other submersible pump generates water pressure internally by using the water sucked in by the other two submersible pumps, so that the water in the connecting pipe flows in the opposite direction to discharge sewage, and sewage is discharged while pumping water, which can not only ensure the water supply efficiency, but also enable backwashing without disassembling the filter, which is efficient, convenient and labor-saving; the upper and lower ends of the deep well submersible pump are respectively connected to the valve box, and the connection and disconnection between the through holes are controlled by controlling the rotation of the valve plug in the valve box, so as to control flushing or pumping water or flushing, without the need for multiple valve controls, and the control circuit is simple; the three fan-shaped valve plugs are connected to the drive motor through the connecting shaft, and only a single drive motor is required to control two of the three valve boxes to be in a connected state for pumping water, and the other valve box to be in a state for backwashing, and the drive structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 It is a right side view of the deep well submersible pump of the present invention;

[0015] Figure 3 is a cross-sectional view of the valve box of the present invention;

[0016] Figure 4 It is a right side view of the filter of the present invention;

[0017] Figure 5 It is the principle diagram of the present invention;

[0018] Figure numerals: 1, fixing cylinder; 101, bracket; 2, deep well submersible pump; 3, valve box; 301, first through hole; 302, second through hole; 303, third through hole; 304, valve plug; 4, filter; 401, filter screen; 5, connecting shaft; 6, drain pipe; 7, flange; 8, connecting pipe; 9, driving motor; 10, base; 11, control box. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0020] The specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0021] Example 1

[0022] like Figure 1-5 As shown, a novel automatic filter backwashing device comprises a fixed cylinder 1, a deep well submersible pump 2 is connected above the fixed cylinder 1, the deep well submersible pump 2 is electrically connected to a control box 11 fixedly connected to the end of the fixed cylinder 1, the bottom of the deep well submersible pump 2 is connected to a valve box 3 through a connecting pipe 8, the side of the valve box 3 is respectively connected to a filter 4 and a connecting pipe 8 connected to the top of the deep well submersible pump 2, a valve plug 304 is rotatably connected inside the valve box 3, the valve plug 304 is connected to a drive motor 9, the drive motor 9 is electrically connected to the control box 11, and a filter 4 is provided with a filter 4. Net 401, three deep well submersible pumps 2 are connected to the top of the fixed cylinder 1, each deep well submersible pump 2 is connected to a valve box 3, and the three valve boxes 3 are respectively provided with rotatably connected valve plugs 304, the three valve plugs 304 are fixedly connected by a connecting shaft 5 that passes through the axis of the valve box 3, the connecting shaft 5 is fixedly connected to the shaft of the driving motor 9, the valve plug 304 is in the shape of a fan-shaped column, the inner side of the valve plug 304 is fixedly connected to the connecting shaft 5, the outer side of the valve plug 304 is in contact with the inner side of the valve box 3, and the three fan-shaped columnar valve plugs 304 are staggered and fixed on the connecting shaft 5.

[0023] When the three deep well submersible pumps 2 are working, the controller controls two of the deep well submersible pumps 2 to work. The working deep well submersible pumps 2 draw water from the filter 4 into the valve box 3, and the water passes through the connecting pipe 8 between the valve box 3 and the bottom of the deep well submersible pump 2, the deep well submersible pump 2, and the connecting pipe 8 connected to the bottom of the drainage pipe 6, and finally flows through the drainage pipe 6. Since the two deep well submersible pumps 2 work at the same time, the drainage pipe 6 is connected to the three deep well submersible pumps 2 at the same time, and the water pressure in the drainage pipe 6 is higher than the water pressure outside the pipe, so the water in the drainage pipe 6 enters the valve box 3 through the connecting pipe 8 connected to the top of the deep well submersible pump 2. The deep well submersible pump 2 connected to this valve box 3 is in a shutdown state, so the valve box The water in 3 can flow out in the reverse direction through the filter 4, thereby backwashing the filter 401, which can keep the filter 401 clean. When the other two deep well submersible pumps 2 have been working for a certain period of time, the control box 11 controls the drive motor 9 to rotate, and the drive motor 9 drives the valve plug 304 fixedly connected on the connecting shaft 5 to rotate inside the valve box 3 until the corresponding deep well submersible pump 2 stops. The deep well submersible pump 2 connected to the backwashed filter 4 starts to work, and while keeping the two deep well submersible pumps 2 working, the filter 401 in the other filter 4 starts to be backwashed. The backwashing of the filter 401 can be automatically completed without disassembling the filter 4 and without stopping the machine, which is convenient, labor-saving and more efficient.

[0024] Example 2

[0025] like Figure 1-5 As shown, a novel automatic filter backwashing device comprises a fixed cylinder 1, a deep well submersible pump 2 is connected to the top of the fixed cylinder 1, the deep well submersible pump 2 is electrically connected to a control box 11 fixedly connected to the end of the fixed cylinder 1, the bottom of the deep well submersible pump 2 is connected to a valve box 3 through a connecting pipe 8, the sides of the valve box 3 are respectively connected to a filter 4 and a connecting pipe 8 connected to the top of the deep well submersible pump 2, a valve plug 304 is rotatably connected inside the valve box 3, the valve plug 304 is connected to a driving device, the driving device is electrically connected to the control box 11, a filter screen 401 is arranged in the filter 4, and the sides of the valve box 3 are respectively provided with a first through hole 301 connected to the bottom of the deep well submersible pump 2, a second through hole 302 connected to the top of the deep well submersible pump 2, and a third through hole 303 connected to the filter 4, the diameter of the first through hole 301 is larger than the width of the valve plug 304, and the diameters of the second through hole 302 and the third through hole 303 are both smaller than the width of the valve plug 304.

[0026] The second through hole 302 on the valve box 3 connected to the deep well submersible pump 2 in the working state is blocked by the valve plug 304 and is in a sealed state. The deep well submersible pump 2 connected thereto is working. The second through hole 302 of the deep well submersible pump 2 in the stopped state is open. The first through hole 301 is in a sealed state, and the deep well submersible pump 2 connected thereto is stopped. In the initial state, the positions of the three valve plugs 304 are as follows: Figure 3As shown, one end of the valve plug 304 located at the left end of the connecting shaft 5 blocks the second through hole 302 on the valve box 3 where it is located, and the middle of the valve plug 304 located in the middle of the connecting shaft 5 blocks the second through hole 302 on the valve box 3 where it is located. The first through holes 301 of the above two valve boxes 3 are connected, so the two deep well submersible pumps 2 connected thereto work under the control of the control box 11. When the drive motor 9 rotates under the control of the control box 11, the valve plug 304 on the connecting shaft 5 rotates in the corresponding valve box 3, and the valve plug 304 located at the leftmost end of the connecting shaft 5 rotates to the state where the valve plug 304 in the middle of the connecting shaft 5 is located in the previous state, and the valve plug 304 located in the middle of the connecting shaft 5 rotates to the state where the valve plug 304 in the middle of the connecting shaft 5 is located in the previous state. In the state, the valve plug 304 at the right end of the connecting shaft 5 is located, the valve plug 304 at the right end of the connecting shaft 5 is separated from the end of the first through hole 301, and the first through hole 301 is connected. At this time, the first air hole of the valve box 3 in the middle of the connecting shaft 5 is closed, and the deep well submersible pump 2 connected thereto is shut down, and the filter 4 connected to this deep well submersible pump 2 can be reversely flushed; then the driving motor 9 is rotated again to close the valve plug 304 and the first air hole in the valve box 3 at the left end of the connecting shaft 5. Controlling the driving motor 9 to circulate can flush the filters 4 connected to the three deep well submersible pumps 2 in turn, and there is no need to connect multiple valves to the deep well pump, and it is controlled by a more complex circuit, and the structure is simpler.

[0027] Working principle: When the present invention is in use, the base 10 of the present invention is placed downwardly underwater, and the deep well submersible pump 2 connected to the base 10 through the bracket 101, the fixing tube 1, and the flange 7 is kept vertical. After the interior is filled with water, the control box 11 controls the two deep well submersible pumps 2 to work, and the other deep well submersible pump 2 backwashes the filter screen 401 in the filter 4. Then the driving motor 9 rotates to open the first through hole 301 in the valve box 3 connected to the filter 4 after flushing, and the connected deep well submersible pump 2 works, and the other deep well submersible pump 2 is stopped, and the filter 4 connected to it is backwashed. Such a cycle can make the deep well submersible pump 2 work continuously and automatically clean up debris, keep the filter 4 clean, and no disassembly and cleaning are required, which is more convenient and labor-saving. The pipelines are connected to the valve box 3 through the connecting pipe 8, and the switching method is simple.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A novel automatic filter backwashing device, comprising a fixed cylinder (1), characterized in that: A deep well submersible pump (2) is connected to the top of the fixed cylinder (1); the deep well submersible pump (2) is electrically connected to a control box (11) fixedly connected to the end of the fixed cylinder (1); the bottom of the deep well submersible pump (2) is connected to a valve box (3) via a connecting pipe; the side of the valve box (3) is respectively connected to a filter (4) and a connecting pipe connected to the top of the deep well submersible pump (2); a valve plug (304) is rotatably connected inside the valve box (3); the valve plug (304) is connected to a driving device; the driving device is electrically connected to the control box (11); a filter screen (401) is provided inside the filter (4); Three deep well submersible pumps (2) are connected to the top of the fixed cylinder (1), and each of the deep well submersible pumps (2) is respectively connected to a valve box (3); The side surface of the valve box (3) is respectively provided with a first through hole (301) communicating with the bottom end of the deep well submersible pump (2), a second through hole (302) communicating with the top end of the deep well submersible pump (2), and a third through hole (303) communicating with the filter (4); The three valve boxes (3) are respectively provided with rotatably connected valve plugs (304), and the three valve plugs (304) are fixedly connected via a connecting shaft (5) that passes through the axis of the valve box (3), and the connecting shaft (5) is fixedly connected to the shaft of the drive motor (9), and the drive motor (9) is electrically connected to the control box (11); The valve plug (304) is in the shape of a fan-shaped column. The inner side of the valve plug (304) is fixedly connected to the connecting shaft (5). The outer side of the valve plug (304) is in contact with the inner side of the valve box (3). Three fan-shaped columnar valve plugs (304) are staggered and fixed on the connecting shaft (5).

2. A novel automatic filter screen backwashing device according to claim 1, characterized in that: The diameter of the first through hole (301) is greater than the width of the valve plug (304), and the diameters of the second through hole (302) and the third through hole (303) are both smaller than the width of the valve plug (304).

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