CN207755841U - A kind of quick back-washing dirt separator of angle general formula - Google Patents

Abstract

The utility model discloses a corner-type fast backwash decontamination device, which comprises a decontamination device housing, a water inlet arranged at one end of the decontamination device housing, a water outlet provided on the upper side of the decontamination device housing, The water return port at the other end of the decontamination device housing, the self-return water recoil structure connected to the water outlet and the return water port, the filter element and the sewage outlet located inside the decontamination device housing; the self-return water recoil structure includes connections A water outlet pipe on the water outlet, a return pipe connected to the water return port, a main pipe connecting the water outlet pipe and the return pipe, and a one-way valve arranged on the return pipe. The utility model has the advantages of simple structure, thorough backwashing and decontamination, fine filtration, fast decontamination, non-stop backwashing, resistance is smaller than other filters, and the combination of active backwashing and passive backwashing without setting guides The valve is used to control the direction of water flow, saving cost, reducing damage rate, simple and convenient operation and maintenance, saving time and effort, and improving the service life of the decontamination device.

Description

A corner-type fast backwash decontamination device

technical field

The utility model relates to a corner through type fast backwash decontamination device.

Background technique

The backwash decontamination device, also known as the backwash filter, has the advantages of simple and reliable process, low investment and operating costs, less land occupation, and good purification effect. It will reuse urban sewage after advanced treatment, and provide a solid foundation for urban development. great help. The backwash decontamination filter is mainly composed of high-quality carbon steel cylinder, stainless steel filter screen, butterfly valve and sewage discharge device. When the filter is working, the butterfly valve is in the open state, the water flows into the filter from the inlet, and then goes to the outlet after being filtered by the filter screen, and the dirt and impurities in the water are intercepted by the filter screen. When the filter needs to be drained, close the butterfly valve. Open the drain valve, the water will be filtered in the first half of the filter, part of the water will flow directly into the system, and the other part of the water will flow from the outside of the filter to the inside and be discharged through the sewage outlet. It plays the role of automatically flushing the filter screen in reverse and removing dirt and impurities. The whole recoil blowdown process does not need to shut down the system, realizing online blowdown. The existing backwash decontamination device has a complex structure, and most of them use a pilot valve in the filter to control the direction of water flow for flushing. The pilot valve of this structure is easily damaged and difficult to maintain, especially when the water flow pressure is high, the pilot valve should be closed. The resistance is large and the operation is inconvenient.

Utility model content

The purpose of the utility model is to provide a corner-type fast backwash decontamination device capable of flushing and decontamination thoroughly.

In order to achieve the above object, the technical scheme that the utility model takes is as follows:

A corner type fast backwash decontamination device, comprising a decontamination device housing, a water inlet provided at one end of the decontamination device housing, a water outlet provided on the upper side of the decontamination device housing, The water return port at the other end of the housing, the self-return water recoil structure connected to the water outlet and the water return port, the filter element connected to the water inlet at one end and located inside the decontamination device housing, and the filter element arranged on the lower side of the decontamination device housing the outfall of the department;

The water inlet and the water return port are located on the same side of the decontamination device housing;

The self-backwater recoil structure includes an outlet pipe connected to the water outlet, a return pipe connected to the water return port, a main pipe connecting the outlet pipe and the return pipe, and a one-way valve arranged on the return pipe;

The one-way valve is a valve for the water in the main pipe to return to the return pipe in one direction.

As a further improvement of the utility model, the main pipe is provided with a throttling stop valve and a connecting flange provided at the end.

As a further improvement of the utility model, it also includes a temporary sewage storage tank connected to the sewage outlet, a sewage discharge pipe connected to the temporary sewage storage tank, and a sewage discharge valve arranged on the sewage discharge pipe.

As a further improvement of the utility model, the filter element includes a filter cartridge with one end connected to the water inlet and a filter plate connected between the other end of the filter cartridge and the inner side wall of the decontamination device housing;

Both the filter cartridge and the filter plate are provided with filter holes.

As a further improvement of the utility model, the water outlet is located on the housing of the decontamination device between the water inlet and the filter plate; the water return port and the water inlet are respectively located on both sides of the filter plate.

As a further improvement of the utility model, the housing of the decontamination device is provided with a water inlet pipe connection flange located outside the water inlet.

Compared with the prior art, the beneficial effects obtained by the utility model are as follows:

The utility model has the advantages of simple structure, thorough backwashing and decontamination, fine filtration, fast decontamination, non-stop backwashing, and less resistance than other filters. The water enters the filter cartridge from the water inlet, and the dirt and impurities remain in the shell of the decontamination device. The water filtered out of the dirt and impurities is discharged from the water outlet to the main pipe, and the dirt and impurities are precipitated and accumulated in the dirt temporary storage tank due to their own gravity. During the decontamination process of the above-mentioned water flow, the water part in the outlet pipe flows back to the decontamination device shell through the one-way valve of the return pipe, and recoils the bottom of the decontamination device shell with more dirt to avoid light impurity foam It stays on the inner wall of the decontamination device to ensure the effect of filtering and decontamination. It can also perform strong backwashing by closing the throttle stop valve to meet the needs of different water flows. The two forms of active backwashing and passive backwashing are combined without A pilot valve is set to control the direction of water flow, which saves cost and reduces the damage rate. The operation and maintenance are simple and convenient, saving time and effort, and improving the service life of the decontamination device.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the utility model filter core structural representation;

Accompanying drawing 3 is the structure diagram of filter plate of the present utility model.

In the attached drawings: 1 decontamination device shell, 2 water inlet pipe connecting flange, 3 water inlet, 4 filter element, 5 water outlet pipe, 6 return water pipe, 7 one-way valve, 8 throttling stop valve, 9 connecting flange, 10 Dirt temporary storage tank, 11 sewage valve, 12 sewage pipe, 13 sewage outlet, 14 water outlet, 15 return water outlet, 16 main pipe, 41 filter cartridge, 42 filter plate, 43 filter hole.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in the accompanying drawings 1-3, a corner-type fast backwash decontamination device includes a decontamination device housing 1, a water inlet 3 provided at one end of the decontamination device housing 1, and a water inlet 3 provided at the decontamination device housing. 1 The water outlet 14 on the upper side, the water return port 15 provided at the other end of the decontamination device housing 1, the self-return water recoil structure connected to the water outlet 14 and the water return port 15, one end connected to the water inlet 3 and The filter element 4 located inside the decontamination device housing 1 and the sewage outlet 13 arranged on the lower side of the decontamination device housing 1; the water inlet 3 and the return port 15 are located on the same side of the decontamination device housing 1; the The self-backwater recoil structure includes a water outlet pipe 5 connected to the water outlet 14, a return pipe 6 connected to the water return port 15, a main pipe 16 connecting the water outlet pipe 5 and the return pipe 6, and a one-way pipe arranged on the return pipe 6. Valve 7; the one-way valve 7 is a valve for the water in the main pipe 16 to return to the return pipe 6 in one direction. The main pipe 16 is provided with a throttling stop valve 8 and a connecting flange 9 provided at the end. It also includes a temporary waste storage tank 10 connected to the sewage outlet 13 , a sewage discharge pipe 12 connected to the temporary sewage storage tank 10 and a sewage discharge valve 11 arranged on the sewage discharge pipe 12 . The filter element 4 includes a filter cartridge 41 with one end connected to the water inlet 3 and a filter plate 42 connected between the other end of the filter cartridge 41 and the inner side wall of the decontamination device housing 1; the filter cartridge 41 and the filter plate 42 Filter holes 43 are all provided. The water outlet 14 is located on the decontamination device housing 1 between the water inlet 3 and the filter plate 42 ; the water return port 15 and the water inlet 3 are respectively located on both sides of the filter plate 42 .

The working process of the utility model is as follows: the water flow enters the filter cartridge 41 from the water inlet 3, the dirt and impurities are left in the decontamination device housing 1, the water filtered out of the dirt and impurities is discharged from the water outlet 14 to the main pipe 16, and the dirt and impurities are discharged into the main pipe 16. Impurities precipitate and gather in the temporary storage tank 10 due to their own gravity. During the decontamination process of the above-mentioned water flow, the water in the outlet pipe 5 flows back to the decontamination device housing 1 through the check valve 7 of the return pipe 6. Recoil at the bottom of the dirt collector housing 1 with more dirt to avoid light impurities and foam remaining on the inner wall of the dirt cleaner housing 1 to ensure the effect of filtering and decontamination. It can also be used to perform strong backwashing by closing the throttle stop valve to meet the According to the needs of different water flow sizes, the two forms of active recoil and passive recoil are combined, and there is no need to set a pilot valve to control the direction of water flow, saving costs, reducing damage rates, simple and convenient operation and maintenance, saving time and effort, and improving the use of decontamination devices life. The utility model has the advantages of simple structure, thorough backwashing and decontamination, fine filtration, fast decontamination, non-stop backwashing, and less resistance than other filters.

The above-mentioned implementations are only preferred embodiments of the present utility model, rather than an exhaustive list of feasible implementations of the present utility model. For those skilled in the art, any obvious changes made without departing from the principle and spirit of the utility model should be considered to be included in the protection scope of the claims of the utility model.

Claims (6)

1. A corner-type fast backwash decontamination device, characterized in that it includes a decontamination device housing (1), a water inlet (3) arranged at one end of the decontamination device housing (1), a The water outlet (14) on the upper side of the dirt collector housing (1), the water return port (15) set at the other end of the dirt remover housing (1), and the water outlet (14) and the water return port (15) are connected The self-returning backwash structure, one end connected to the water inlet (3) and the filter element (4) inside the decontamination housing (1) and the sewage outlet provided on the lower side of the decontamination housing (1) (13); The water inlet (3) and the water return port (15) are located on the same side of the decontamination device housing (1); The self-backwater recoil structure includes a water outlet pipe (5) connected to the water outlet (14), a water return pipe (6) connected to the water return port (15), a water outlet pipe (5) connected to the return water pipe (6) ) of the main pipe (16) and the one-way valve (7) set on the return pipe (6); The one-way valve (7) is a valve for the one-way return of water from the main pipe (16) to the return pipe (6). 2. A corner-type fast backwash decontamination device according to claim 1, characterized in that: the main pipe (16) is provided with a throttle stop valve (8) and a connecting flange provided at the end (9). 3. A corner-type fast backwash decontamination device according to claim 2, characterized in that: it also includes a temporary storage tank (10) connected to the sewage outlet (13), a temporary storage tank (10) connected to the temporary sewage The blowdown pipe (12) on the storage tank (10) and the blowdown valve (11) arranged on the blowdown pipe (12). 4. A corner-type fast backwash decontamination device according to claim 3, characterized in that: the filter element (4) includes a filter cartridge (41) with one end connected to the water inlet (3) and a The filter plate (42) between the other end of the filter cartridge (41) and the inner wall of the decontamination device housing (1); Both the filter cartridge (41) and the filter plate (42) are provided with filter holes (43). 5. A corner-type fast backwash decontamination device according to claim 4, characterized in that: the decontamination device where the water outlet (14) is located between the water inlet (3) and the filter plate (42) On the casing (1); the water return port (15) and the water inlet port (3) are respectively located on both sides of the filter plate (42). 6. A corner-type fast backwash decontamination device according to claim 1, characterized in that: the decontamination device housing (1) is provided with a water inlet pipe connection method located outside the water inlet (3) Lan (2).