Double-rotational-flow efficient automatic filter backwashing device

Abstract

The invention relates to the technical field of filters, in particular to a double-cyclone efficient automatic filter backwashing device which comprises a filter body, and a bottom backwashing air inlet pipeline connector, a middle backwashing air inlet pipeline connector and an upper backwashing air inlet pipeline connector are mounted on the filter body. The bottom end of the filter main body is also respectively connected with a water inlet pipeline connecting end, a backwashing drainage and exhaust pipeline connecting end, a water outlet pipeline connecting end, a blow-off pipeline connecting end and a backwashing water inlet connecting end. According to the backwashing device, backwashing drainage and gas pipelines at the upper part of the filter are combined, the device is simplified, an electric valve and a manual valve are reduced, frequent opening and closing of an upper backwashing exhaust valve and a drainage valve are avoided, backwashing operation is simplified, backwashing time of the filter is saved, and labor cost is reduced. Spare part consumption and failure rate of electric valves and manual valves are reduced, and power consumption caused by frequent opening and closing of the valves is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of filters, in particular to a double-cyclonic high-efficiency automatic filter backwashing device. Background Art

[0002] In the process of industrial circulating water treatment in water systems, filters are common water treatment equipment, among which dual-cyclone high-efficiency automatic filters have many advantages. When there are more suspended solids in the raw water, they can ensure the high quality of the effluent water. They have the characteristics of high filtration speed, large water treatment volume, small footprint, and strong oil removal, so they are widely used in turbid water systems. In order to ensure the working effect of the equipment, the filter must be backwashed in time. Since the backwashing operation of the dual-cyclone filter is complicated and involves multiple valve switches, it brings greater operating difficulty, especially in the manual operation mode, which affects the work efficiency and causes power waste. A dual-cyclone high-efficiency automatic filter backwashing device is needed to solve this problem.

[0003] The object of the present invention is to provide a double cyclonic high-efficiency automatic filter backwashing device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a double-cyclone high-efficiency automatic filter backwash device, comprising a filter body, on which a bottom backwash air inlet pipe interface, a middle backwash air inlet pipe interface and an upper backwash air inlet pipe interface are respectively installed, and the bottom end of the filter body is also respectively connected to an inlet pipe connection end, a backwash drainage and exhaust pipe connection end, a water outlet pipe connection end, a sewage pipe connection end and a backwash water inlet connection end, and the inlet pipe connection end, the backwash drainage and exhaust pipe connection end, the water outlet pipe connection end, the sewage pipe connection end and the backwash water inlet connection end are all connected to the filter body through a connecting pipe.

[0005] As a preferred technical solution of the present invention, a manually controllable bottom backwash air inlet manual valve and an automatically controlled bottom backwash air inlet electric valve are respectively provided at the connecting pipe between the bottom backwash air inlet pipe interface and the filter body connecting end.

[0006] As a preferred technical solution of the present invention, a manually controllable middle backwash air inlet manual valve and an automatically controlled middle backwash air inlet electric valve are respectively provided at the connecting pipe between the middle backwash air inlet pipe interface and the filter body connecting end.

[0007] As a preferred technical solution of the present invention, an upper backwash exhaust and drainage valve is provided at the connecting pipe between the upper backwash air inlet pipe interface and the filter body connecting end.

[0008] As a preferred technical solution of the present invention, manually controllable manual valves and automatically controllable electric valves are respectively installed on the connecting pipes between the water inlet pipe connection end, the backwash drain and exhaust pipe connection end, and the backwash water inlet connection end and the filter body.

[0009] As a preferred technical solution of the present invention, a backwash water supply pump is installed on the water outlet pipe connection end, and a water outlet valve for controlling water inlet and outlet is provided on the water outlet pipe.

[0010] As a preferred technical solution of the present invention, manually controllable bottom blowdown valves and automatically controllable bottom blowdown valves are respectively installed on the blowdown pipe connection end.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is a double-vortex high-efficiency automatic filter backwash device. The backwash device provided in this device simplifies the device by combining the upper backwash drain and air pipes of the filter, reducing one electric valve and one manual valve, avoiding the frequent switching of the upper backwash exhaust valve and drain valve, simplifying the backwash operation, saving the filter backwash time, reducing labor costs, reducing the consumption and failure rate of electric valve and manual valve spare parts, and avoiding the power consumption caused by the frequent switching of valves. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a flowchart of a double-vortex high-efficiency automatic filter backwash device according to an embodiment of the present invention.

[0014] Reference Signs: 1. Filter body; 2. Backwash water supply pump; 3. Middle backwash air inlet pipe interface; 4. Bottom backwash air inlet pipe interface; 5. Water inlet pipe connection end; 6. Backwash drain and exhaust pipe connection end; 7. Water outlet pipe connection end; 8. Blowdown pipe connection end; 9. Backwash water inlet connection end; 10. Water outlet valve; 11. Upper backwash exhaust and drain valve; 12. Bottom backwash air inlet manual valve; 13. Bottom backwash air inlet electric valve; 14. Middle backwash air inlet manual valve; 15. Middle backwash air inlet electric valve; 16. Bottom blowdown valve; 17. Electric valve; 18. Manual valve; 19. Upper backwash air inlet pipe interface. Detailed Embodiments

[0015] Next, in combination with the accompanying drawings and specific embodiments, the invention will be further described: Embodiment

[0016] Reference Figure 1 Referring to Embodiment 1, it includes a filter body 1. A bottom backwash air inlet pipe interface 4, a middle backwash air inlet pipe interface 3, and an upper backwash air inlet pipe interface 19 are respectively installed on the filter body 1. At the bottom end of the filter body 1, a water inlet pipe connection end 5, a backwash drain and exhaust pipe connection end 6, a water outlet pipe connection end 7, a sewage discharge pipe connection end 8, and a backwash water inlet connection end 9 are respectively connected. Moreover, the water inlet pipe connection end 5, the backwash drain and exhaust pipe connection end 6, the water outlet pipe connection end 7, the sewage discharge pipe connection end 8, and the backwash water inlet connection end 9 are all connected to the filter body 1 through connecting pipes. Manual valves 18 that can be manually controlled and electric valves 17 that can be automatically controlled are respectively installed on the connecting pipes between the water inlet pipe connection end 5, the backwash drain and exhaust pipe connection end 6, and the backwash water inlet connection end 9 and the filter body 1. A backwash water supply pump 2 is installed on the water outlet pipe connection end 7, and a water outlet valve 10 for controlling water inlet and outlet is provided on the water outlet pipe. A manually controllable bottom sewage discharge valve 16 and an automatically controllable bottom sewage discharge valve 16 are respectively installed on the sewage discharge pipe connection end 8; In this embodiment, one electric valve 17 and one manual valve 18 are reduced in the set backwash drain and exhaust pipe connection end 6, simplifying the backwash operation. Embodiment

[0017] Reference Figure 1 Referring to Embodiment 2, this embodiment further describes Embodiment 1. It includes a bottom backwash air inlet pipe interface 4. A manually controllable bottom backwash air inlet manual valve 12 and an automatically controllable bottom backwash air inlet electric valve 13 are respectively provided at the connection pipe of the bottom backwash air inlet pipe interface 4 and the connection end of the filter body 1. A manually controllable middle backwash air inlet manual valve 14 and an automatically controllable middle backwash air inlet electric valve 15 are respectively provided at the connection pipe of the middle backwash air inlet pipe interface 3 and the connection end of the filter body 1; In specific applications, the backwash process of this device is as follows: a. First, close the filter water outlet valve 10, and simultaneously open the filter upper backwash exhaust and drain valve 11 (a combined valve), and then close the filter water inlet valve after 10 seconds (tentative, the adjustable time range is 0 - 10 minutes); b. Open the filter bottom backwash air inlet valve, and close it after 2 minutes (tentative, the adjustable time range is 0 - 10 minutes); c. Open the filter bottom backwash water inlet valve, and simultaneously transmit a signal to start the operation of the backwash water supply pump 2. Close the valve and stop the pump after 4 minutes (tentative, the adjustable time range is 0 - 10 minutes); d. Open the backwashing air inlet valve of the F pipe in the middle of the filter, and close it after 3 minutes (tentative, the adjustable time range is 0 - 10 minutes); e. Open the backwashing water inlet valve at the bottom of the filter, and simultaneously send a signal to start the operation of the backwashing water supply pump 2. Close the valve and stop the pump after 4 minutes. At the same time, close the backwashing exhaust and water valves at the upper part of the filter (tentative, the adjustable time range is 0 - 10 minutes); f. Open the drain valve 16 at the bottom of the filter. Open the inlet valve of the filter after 2 seconds and close the drain valve 16 at the bottom after 3 minutes. Open the outlet valve 10 of the filter (tentative, the adjustable time range is 0 - 10 minutes); By merging the upper backwashing drainage and gas pipelines of one of the filters in this device, the device is simplified, one electric valve 17 and one manual valve 18 are reduced, and the backwashing operation is simplified. It is currently operating well and has significant power-saving benefits.

[0018] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "rear", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; in addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A backwashing device for a double-vortex high-efficiency automatic filter, characterized in that, It includes a filter body (1), on which a bottom backwash air inlet pipe interface (4), a middle backwash air inlet pipe interface (3) and an upper backwash air inlet pipe interface (19) are respectively installed. At the bottom end of the filter body (1), there are also respectively connected an inlet pipe connection end (5), a backwash drain and exhaust pipe connection end (6), an outlet pipe connection end (7), a sewage discharge pipe connection end (8) and a backwash water inlet connection end (9), and the inlet pipe connection end (5), the backwash drain and exhaust pipe connection end (6), the outlet pipe connection end (7), the sewage discharge pipe connection end (8) and the backwash water inlet connection end (9) are all connected to the filter body (1) through connecting pipes.

2. The backwashing device for a double - swirl high - efficiency automatic filter according to claim 1, characterized in that, At the connecting pipe of the bottom backwash air inlet pipe interface (4) and the connection end of the filter body (1), a manually controllable bottom backwash air inlet manual valve (12) and an automatically controllable bottom backwash air inlet electric valve (13) are respectively provided.

3. The backwashing device for a double-vortex high-efficiency automatic filter according to claim 1, characterized in that, At the connecting pipe of the middle backwash air inlet pipe interface (3) and the connection end of the filter body (1), a manually controllable middle backwash air inlet manual valve (14) and an automatically controllable middle backwash air inlet electric valve (15) are respectively provided.

4. A backwashing device for a double-vortex high-efficiency automatic filter according to claim 1, characterized in that, At the connecting pipe of the upper backwash air inlet pipe interface (19) and the connection end of the filter body (1), an upper backwash exhaust and drain valve (11) is provided.

5. The backwashing device for a double-vortex high-efficiency automatic filter according to claim 1, characterized in that, On the connecting pipes between the inlet pipe connection end (5), the backwash drain and exhaust pipe connection end (6) and the backwash water inlet connection end (9) and the filter body (1), a manually controllable manual valve (18) and an automatically controllable electric valve (17) are respectively installed.

6. The backwashing device for a double-swirl high-efficiency automatic filter according to claim 1, characterized in that, On the outlet pipe connection end (7), a backwash water supply pump (2) is installed, and on the outlet pipe, an outlet valve (10) for controlling the inlet and outlet of water is provided.

7. The backwashing device for a double-vortex high-efficiency automatic filter according to claim 1, characterized in that, On the sewage discharge pipe connection end (8), a manually controllable bottom sewage discharge valve (16) and an automatically controllable bottom sewage discharge valve (16) are respectively installed.

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