Filtering and disinfecting tank

Abstract

The utility model discloses a filtering and disinfecting tank, belongs to the field of sewage treatment, and solves the problem that the existing sewage treatment plant occupies a large area. The device comprises a filter tank, an ultraviolet disinfection tank and a chlorine supplementing tank which are sequentially communicated, the front end of the filter tank is communicated with a water inlet channel, the water inlet channel is connected with a water inlet pipe, the filter tank is communicated with the ultraviolet disinfection tank through a middle channel, and the rear end of the chlorine supplementing tank is connected with a water outlet pipe. According to the utility model, the channel is reasonably designed, and the filter tank and the ultraviolet disinfection tank are designed into a whole, so that the occupied area is effectively reduced, and land resources are favorably saved. And through combined design and construction, repeated construction and maintenance work among facilities are reduced, the operation efficiency and the management effect are improved, and the investment and operation and maintenance cost are reduced. Original pipeline connection is improved into channel connection, less underground space is occupied, and later expansion and transformation and other engineering implementation are facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment, and specifically relates to a filtering and disinfecting pool. Background Art

[0002] In sewage treatment, the sewage is usually filtered to remove tiny particles, suspended matter and turbid matter in the sewage, and then enters the ultraviolet disinfection pool through the connecting pipe, where the ultraviolet radiation kills the remaining microorganisms and pathogens before the sewage meets the discharge standards. However, as two independent sewage treatment units, they are generally arranged separately in existing engineering construction.

[0003] With the acceleration of urbanization and the growth of population, the total amount of urban sewage is also increasing. Urban sewage treatment plants usually need to occupy large tracts of land, while urban land resources are limited. Therefore, saving land is particularly important for sewage treatment plants. Through scientific and reasonable planning and design, land can be saved to the maximum extent, and improving the utilization efficiency of land resources has become an urgent problem to be solved. In addition, the filtration pool and ultraviolet disinfection pool are designed and constructed separately, which increases the duplication of construction and maintenance work between facilities, increases investment costs, and reduces operating efficiency and management effects; and the connecting pipes generally need to be buried, occupying a large underground space, making maintenance and repair difficult, which is not conducive to the implementation of later expansion and renovation projects. Utility Model Content

[0004] The utility model aims to provide a filtering and disinfecting pool to solve the problem that the current sewage treatment plant occupies a large area.

[0005] The technical scheme of the utility model is: a filtering and disinfecting pool, comprising a filtering pool, an ultraviolet disinfecting pool and a chlorine replenishing pool which are connected in sequence, the front end of the filtering pool is connected with a water inlet channel, the water inlet channel is connected with a water inlet pipe, the filtering pool and the ultraviolet disinfecting pool are connected through an intermediate channel, and the rear end of the chlorine replenishing pool is connected with a water outlet pipe.

[0006] As a further improvement of the utility model, it also includes an override channel, which is connected to the water inlet channel through a override hole, and an override gate is provided at the override hole; the override channel is connected to the middle channel, and the middle channel is connected to the ultraviolet disinfection pool through a first water inlet hole, and a first gate is provided at the first water inlet hole; the middle channel is connected to the chlorine replenishment pool through a second water inlet hole, and a second gate is provided at the second water inlet hole.

[0007] As a further improvement of the utility model, the filter pool is connected with the middle channel through the filter outlet hole.

[0008] As a further improvement of the utility model, the water inlet channel is connected to the filter tank through a plurality of regulating weir plates.

[0009] As a further improvement of the utility model, a plurality of guide walls are arranged in the chlorine replenishing pool, and the plurality of guide walls divide the chlorine replenishing pool into continuous S-shaped channels.

[0010] As a further improvement of the utility model, a water outlet weir is provided at the rear end of the chlorine replenishing pool.

[0011] As a further improvement of the utility model, a plurality of water outlet holes are provided at the lower end of the water outlet weir.

[0012] As a further improvement of the utility model, a dosing pipe is provided at the front end of the chlorine replenishing pool.

[0013] As a further improvement of the utility model, tracks are respectively arranged above the filtration pool, the ultraviolet disinfection pool and the chlorine supplementation pool, and electric hoists are arranged on the tracks.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model integrates the filtration pool and the ultraviolet disinfection pool into one by rationally designing the channel, effectively reducing the floor space and saving land resources. The combined design and construction can reduce the duplication of construction and maintenance work between facilities, increase operational efficiency and management effect, and reduce investment and operation and maintenance costs.

[0016] 2. The utility model improves the original pipeline connection into a channel connection, which occupies less underground space and is conducive to the implementation of subsequent expansion and reconstruction projects.

[0017] 3. Generally, ultraviolet disinfection technology can effectively kill bacteria and pathogens, but practice shows that it is not effective enough for some parasites, spores and some ultraviolet-resistant microorganisms. Therefore, the utility model sets a chlorine replenishment pool after the ultraviolet disinfection pool to enhance the disinfection effect and ensure that the effluent meets the discharge standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 2 yes Figure 1 AA view in;

[0020] Figure 3 yes Figure 1 BB view in.

[0021] In the figure: 1-filtration tank; 2-ultraviolet disinfection tank; 3-chlorine supplement tank; 4-water inlet channel; 5-water inlet pipe; 6-water outlet pipe; 7-dosing pipe; 8-overpass channel; 9-overpass hole; 10-overpass gate; 11-second water inlet hole; 12-second gate; 13-adjusting weir plate; 14-precision filter; 15-ultraviolet disinfection module group; 16-diversion wall; 17-water outlet weir; 18-water outlet hole; 19-automatic water level control weir gate; 20-track; 21-electric hoist; 22-backwash water pipe; 23-sump; 24-vent pipe; 25-middle channel; 26-filter outlet hole; 27-first water inlet hole; 28-first gate. DETAILED DESCRIPTION

[0022] The utility model is described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown, a filtering and disinfecting pool comprises a filtering pool 1, an ultraviolet disinfecting pool 2 and a chlorine replenishing pool 3 which are connected in sequence. The ultraviolet disinfecting pool 2 and the chlorine replenishing pool 3 are arranged side by side on one side of the filtering pool 1. The front end of the filtering pool 1 is connected with a water inlet channel 4, and the water inlet channel 4 is connected with a water inlet pipe 5. The filtering pool 1 and the ultraviolet disinfecting pool 2 are connected through an intermediate channel 25, and the rear end of the chlorine replenishing pool 3 is connected with a water outlet pipe 6.

[0024] A plurality of precision filters 14 are provided in the filter tank 1. The precision filter is an important device in the sewage deep treatment system, which is used to remove tiny solid particles, suspended matter and other impurities in the wastewater. The precision filter 14 is connected to a backwash water pipe 22. A sump 23 is provided at the bottom of the filter tank 1, and the sump 23 is connected to a drain pipe 24.

[0025] The ultraviolet disinfection pool 2 is provided with an ultraviolet disinfection module group 15. The ultraviolet disinfection module group 15 kills pathogenic microorganisms in sewage.

[0026] It also includes an override channel 8, which is connected to the water inlet channel 4 through a override hole 9, and an override gate 10 is provided at the override hole 9; the override channel 8 is connected to the intermediate channel 25, and the intermediate channel 25 is connected to the ultraviolet disinfection pool 2 through a first water inlet hole 27, and a first gate 28 is provided at the first water inlet hole 27; the intermediate channel 25 is connected to the chlorine supplementation pool 3 through a second water inlet hole 11, and a second gate 12 is provided at the second water inlet hole 11.

[0027] The filter pool 1 is connected to the middle channel 25 through the filter outlet hole 26 .

[0028] The water inlet channel 4 is connected to the filter tank 1 through a plurality of regulating weir plates 13. The regulating weir plates 13 can adjust the overall water flow width and control the sewage flow entering the filter tank 1.

[0029] A plurality of guide walls 16 are arranged in the chlorine replenishing pool 3, and the plurality of guide walls 16 divide the chlorine replenishing pool 3 into continuous S-shaped channels.

[0030] A water outlet weir 17 is provided at the rear end of the chlorine replenishing pool 3 .

[0031] In order to prevent the formation of a dead water area at the bottom, a plurality of water outlet holes 18 are provided at the lower end of the water outlet weir 17, and water can also be discharged through the water outlet holes 18.

[0032] A dosing pipe 7 is provided at the front end of the chlorine replenishing pool 3 .

[0033] Tracks 20 are respectively arranged above the filtration pool 1, the ultraviolet disinfection pool 2 and the chlorine supplementation pool 3, and electric hoists 21 are arranged on the tracks 20 to facilitate equipment maintenance and operation.

[0034] The overtaking gate 10, the first gate 28 and the second gate 12 are all flashlight dual-purpose gates.

[0035] An automatic water level control weir gate 19 is provided between the ultraviolet disinfection pool 2 and the chlorine supplementation pool 3 .

[0036] The utility model is designed with a filtering pool 1, an ultraviolet disinfection pool 2 and a chlorine supplementation pool 3 in an integrated manner. The structure is used for deep filtering and disinfecting sewage after secondary sedimentation.

[0037] The sewage enters the water inlet channel 4 through the water inlet pipe 5, and then flows into the filter tank 1 through the regulating weir plate 13; in the filter tank 1, after the sewage is filtered by the precision filter 14, it enters the intermediate channel 25 through the filtration outlet hole 26 (at this time, the overtaking gate 10 is closed), and then enters the ultraviolet disinfection tank 2 through the first water inlet hole 27 (at this time, the second gate 12 is closed); in the ultraviolet disinfection tank 2, after the sewage is disinfected by the ultraviolet disinfection module group 15, it enters the chlorination tank 3 through the automatic water level control weir gate 19. When the ultraviolet disinfection effect is unstable, 10% NaClO solution 5~10mg / L can be appropriately added to the chlorination tank 3 through the dosing pipe 7 to further eliminate parasites, spores and some ultraviolet resistant microorganisms. The guide wall 16 can guide the wastewater entering the chlorination tank 3 to different areas to avoid the problem of local dead zones or insufficient mixing caused by uneven flow. The sewage passes through the S-shaped channel formed by the guide wall 16 to improve the contact and mixing degree between the reaction substance and the treatment medium, ensuring the disinfection effect. Then the sewage is discharged from the outlet weir 17 and the outlet pipe 6 in turn.

[0038] The utility model is also provided with a transcending channel 8. When the incoming water quality is good and the suspended matter and solid impurities meet the effluent standard, in order to save energy consumption, the transcending gate 10 can be opened to introduce the sewage into the next treatment unit through the transcending channel 8 and the intermediate channel 25. The first gate 28 can be opened and the second gate 12 can be closed to introduce the sewage into the ultraviolet disinfection module group 15; or the second gate 12 can be opened and the first gate 28 can be closed to introduce the sewage into the chlorine supplementation pool 3.

[0039] When the ultraviolet disinfection module group 15 fails and needs to be repaired, the first gate 28 can be closed and the second gate 12 can be opened to introduce the sewage into the chlorine replenishing tank 3 for treatment.

Claims

1. A filtering and disinfecting tank, characterized in that: The invention comprises a filter pool (1), an ultraviolet disinfection pool (2) and a chlorine supplement pool (3) which are connected in sequence, wherein the front end of the filter pool (1) is connected to a water inlet channel (4), the water inlet channel (4) is connected to a water inlet pipe (5), the filter pool (1) and the ultraviolet disinfection pool (2) are connected via an intermediate channel (25), and the rear end of the chlorine supplement pool (3) is connected to a water outlet pipe (6); The device also includes a transcending channel (8), the transcending channel (8) being connected to the water inlet channel (4) through a transcending hole (9), and a transcending gate (10) being provided at the transcending hole (9); the transcending channel (8) being connected to the intermediate channel (25), the intermediate channel (25) being connected to the ultraviolet disinfection pool (2) through a first water inlet hole (27), and a first gate (28) being provided at the first water inlet hole (27); and the intermediate channel (25) being connected to the chlorine supplementation pool (3) through a second water inlet hole (11), and a second gate (12) being provided at the second water inlet hole (11).

2. A filtration and disinfection pool according to claim 1, characterized in that: The filter pool (1) is connected to the middle channel (25) via the filter outlet hole (26).

3. A filtration and disinfection tank according to claim 1 or 2, characterized in that: The water inlet channel (4) is connected to the filter tank (1) via a plurality of regulating weir plates (13).

4. A filtration and disinfection pool according to claim 3, characterized in that: A plurality of guide walls (16) are arranged in the chlorine replenishing pool (3), and the plurality of guide walls (16) divide the chlorine replenishing pool (3) into continuous S-shaped channels.

5. A filtering and disinfecting pool according to claim 4, characterized in that: A water outlet weir (17) is provided at the rear end of the chlorine replenishing pool (3).

6. A filtering and disinfecting pool according to claim 5, characterized in that: A plurality of water outlet holes (18) are provided at the lower end of the water outlet weir (17).

7. A filtering and disinfecting pool according to claim 6, characterized in that: The front end of the chlorine replenishing pool (3) is provided with a dosing pipe (7).

8. A filtering and disinfecting pool according to claim 7, characterized in that: Tracks (20) are respectively provided above the filtering pool (1), the ultraviolet disinfection pool (2) and the chlorine supplementation pool (3), and electric hoists (21) are provided on the tracks (20).

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