CN218988983U

CN218988983U - Water distribution system of hydrolysis tank

Info

Publication number: CN218988983U
Application number: CN202320045134.XU
Authority: CN
Inventors: 王清华; 王永强
Original assignee: Qingdao Rongyuan Environmental Protection Technology Co ltd
Current assignee: Qingdao Rongyuan Environmental Protection Technology Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-05-09
Anticipated expiration: 2033-01-09

Abstract

The utility model relates to a water distribution system of a hydrolysis tank, which comprises the hydrolysis tank, a biological filler layer arranged in the hydrolysis tank, a water inlet pipe, a water outlet collecting tank, a water distribution pipe and a mud discharge pipe, wherein water distribution holes are uniformly formed in the water distribution pipe, and the water distribution system further comprises: the cleaning device is connected with the water distribution pipe and used for flushing the water distribution pipe in the direction opposite to the water distribution direction so as to prevent blocking of the water distribution holes; the sludge collecting grooves are arranged at the bottom of the hydrolysis tank and are communicated with the sludge discharge pipe; the mud discharging channel is respectively connected with the mud discharging pipe and the dredging device; the number of the water outlet collecting tanks is a plurality of, each water outlet collecting tank keeps the same horizontal height, two side walls of the water outlet collecting tank are provided with a plurality of weir crest, and the height of each weir crest is set to be the same horizontal plane. The water distribution system of the hydrolysis tank solves the problem of uneven water distribution caused by blockage of the water distribution system of the conventional hydrolysis tank by the double arrangement of the water outlet water collecting tank with the weir and the clearing device, and improves the reliability of water distribution.

Description

Water distribution system of hydrolysis tank

Technical Field

The utility model relates to the technical field of hydrolysis tanks, in particular to a water distribution system of a hydrolysis tank.

Background

The statements herein merely provide background art related to the present disclosure and may not necessarily constitute prior art.

The conventional hydrolysis tank is mainly provided with water distribution points at the bottom of the hydrolysis tank, namely, the bottom of the hydrolysis tank is provided with multiple points for water distribution. The sewage uniformly rises from the bottom of the tank and fully contacts with the filler layer, and the biodegradability of pollutants is improved under the metabolism of microorganisms (mainly anaerobic bacteria and facultative bacteria) attached to the filler. Overflowing the treated sewage from the top of the tank; meanwhile, as the rising flow rate of the sewage in the hydrolysis tank is low, suspended matters in the sewage and biological films detached from the filler layer can be settled and accumulated at the bottom of the hydrolysis tank to form a sludge layer.

Because the water distribution point of the conventional hydrolysis tank is arranged at the bottom of the tank, the drift phenomenon is easily caused to the system after the water distribution point is blocked, so that the water distribution is uneven, and the sewage treatment efficiency is affected.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a water distribution system of a hydrolysis tank, wherein a water outlet collecting tank with a weir at the top and a clear device for preventing a water distribution pipe from being blocked at the bottom are added on the basis of a conventional hydrolysis tank, a water inlet system at the bottom is used as a primary water distribution system, the weir is arranged on the water outlet collecting tank at the top of the tank as a secondary water distribution system, and the problem of uneven water distribution caused by blocking of the conventional water distribution system of the hydrolysis tank is solved by the double arrangement of the water outlet collecting tank with the weir and the clear device, and the reliability of water distribution is improved.

The technical scheme of the utility model is as follows:

the utility model provides a water distribution system of a hydrolysis tank, which comprises the hydrolysis tank and a biological filler layer arranged in the hydrolysis tank, wherein the upper part of the hydrolysis tank is provided with a water inlet pipe, a water outlet collecting tank, the lower part of the hydrolysis tank is provided with a water distribution pipe, the bottom of the hydrolysis tank is provided with a mud discharge pipe, the water inlet pipe is connected with the water distribution pipe, and water distribution holes are uniformly formed in the water distribution pipe, and the water distribution system further comprises:

the cleaning device is connected with the water distribution pipe and used for flushing the water distribution pipe in a direction opposite to the water distribution direction so as to prevent the water distribution hole from being blocked; the sludge collecting grooves are arranged at the bottom of the hydrolysis tank and are communicated with the sludge discharge pipe; the mud discharging channel is respectively connected with the mud discharging pipe and the dredging device; the water outlet water collecting tanks are in a plurality, each water outlet water collecting tank keeps the same horizontal height, two side walls of each water outlet water collecting tank are provided with a plurality of weir crest, and the height of each weir crest is set to be the same horizontal plane.

Further, the weir is arranged in a triangle.

Further, the cleaning device comprises a cleaning pipe, a first manual gate valve and a first electric blow-down valve which are arranged on the cleaning pipe, and the cleaning pipe is connected with the water distribution pipe.

Furthermore, the water distribution holes are arranged obliquely downwards and are staggered at an angle of 45 degrees with the vertical direction.

Further, the two side walls of the mud collecting groove form inward inclination angles beta, and the range of the inclination angles beta is 40-60 degrees; the bottom surface of the mud collecting groove is provided with a gradient alpha ranging from 2 degrees to 5 degrees from one end far away from the mud discharging pipe to the mud discharging pipe

The utility model has the advantages that:

1. according to the water distribution system of the hydrolysis tank, the water distribution system with the clearing device is adopted at the bottom of the tank to perform primary water distribution, and the weir mouth is arranged on the water outlet collecting tank at the top of the tank to perform secondary water distribution, so that once the water distribution pipe at the bottom is blocked but not found, the water distribution is forced through the water outlet collecting tank at the top, the water distribution uniformity of the hydrolysis tank is improved, the reliability of the water distribution is improved, and the sewage treatment effect is stably improved.

2. According to the water distribution system of the hydrolysis tank, a certain number of sludge discharge grooves are formed in the bottom of the hydrolysis tank, and the sludge discharge grooves keep a certain gradient so as to be beneficial to sludge discharge, so that sludge deposited at the bottom of the hydrolysis tank can be discharged in time, the sludge discharge function of the hydrolysis tank is enhanced, the treatment load is reduced, the content of suspended matters in effluent is reduced, and the running stability of the system is improved.

Drawings

Fig. 1 is a schematic front view of the overall structure of the present utility model.

Fig. 2 is a schematic structural view of the water distribution pipe of the present utility model.

FIG. 3 is a schematic cross-sectional view of A-A of FIG. 2.

Fig. 4 is a schematic side view of the overall structure of the present utility model.

Fig. 5 is a partial enlarged view of I in fig. 4.

Fig. 6 is a schematic top view of the overall structure of the present utility model.

FIG. 7 is a schematic top view of the connection structure at the water distribution pipe of the present utility model.

FIG. 8 is a schematic top view of the connection structure at the sludge collection trough of the present utility model.

In the figure, 1, a water inlet main pipe; 2. butterfly valve; 3. a water inlet branch pipe; 4. a water distribution pipe; 5. a bio-filler layer; 6. a water outlet collecting tank; 7. a water outlet channel; 8. a water outlet main pipe; 9. a first manual gate valve; 10. a first electric drain valve; 11. a mud discharging branch pipe; 12. a second manual gate valve; 13. a second electric drain valve; 14. a hydrolysis tank; 15. a mud discharging channel; 16. a cover plate; 17. a first seal; 18. a second seal; 19. a first waterproof sleeve; 20. a second waterproof sleeve; 21. a third seal; 22. a fourth seal; 23. embedding a steel plate and a firmware; 24. a filler holder; 25. a flange and a flange cover; 26. a mud collecting groove; 27. a water distribution hole; 28. a weir crest; 29. cleaning a through pipe; 30. and a third waterproof sleeve.

Detailed Description

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In order to facilitate understanding of the utility model by those skilled in the art, a specific embodiment of the utility model is described below with reference to the accompanying drawings.

As shown in fig. 1 to 8, the utility model provides a water distribution system of a hydrolysis tank, which comprises a hydrolysis tank 14, a biological filler layer 5 arranged in the hydrolysis tank 14, a water inlet pipe arranged at the upper part of the hydrolysis tank 14, a water distribution pipe 4 arranged at the lower part of the hydrolysis tank, a mud discharge pipe arranged at the bottom of the hydrolysis tank, wherein the water inlet pipe is connected with the water distribution pipe 4, water distribution holes 27 are uniformly formed in the water distribution pipe 4, and the water distribution system further comprises a clear device, a water outlet collecting tank 6, a mud collecting tank 26 and a mud discharge channel 15.

And the cleaning device is connected with the water distribution pipe 4 and is used for flushing the water distribution pipe 4 in the direction opposite to the water distribution direction so as to prevent the water distribution holes 27 from being blocked.

The effluent water collection tank 6 is arranged at the top of the hydrolysis tank 14, the number of the effluent water collection tanks 6 is a plurality, each effluent water collection tank 6 keeps the same horizontal height, the effluent water collection tank 6 comprises a plurality of weir crest 28, and the height of each weir crest 28 is set to the same horizontal plane.

A mud collecting groove 26 is arranged at the bottom of the hydrolysis tank 14 and is communicated with the mud discharging pipe.

The mud discharging channel 15 is respectively connected with the mud discharging pipe and the dredging device.

The water inlet pipe comprises a water inlet main pipe 1 and a plurality of water inlet branch pipes 3, and butterfly valves 2 are arranged between the water inlet main pipe 1 and the water inlet branch pipes 3. The sludge discharge pipe comprises a plurality of sludge discharge branch pipes 11, and each sludge collection groove 26 is correspondingly communicated with one sludge discharge branch pipe 11.

In operation, as shown in fig. 1, pressure sewage enters the water distribution pipe 4 along the water inlet main pipe 1 sequentially through the butterfly valve 2 and the water inlet branch pipe 3, and is uniformly distributed at the bottom of the hydrolysis tank 14 through the water distribution holes 27 formed in the bottom of the water distribution pipe 4.

As shown in fig. 2 and 3, the water distribution holes 27 on the water distribution pipe 4 are obliquely downward and are staggered at an angle of 45 ° with respect to the vertical direction, and the shape of the water distribution holes 27 may be circular, elliptical or square, which is not limited herein, and in this embodiment, circular is selected as an example. When the device works, the water sprayed from the water distribution holes 27 is mixed with the sludge layer deposited at the bottom of the hydrolysis tank 14, so that the interception, adsorption and filtration effects of the sludge layer are exerted, and the mass transfer effect is improved.

The number of butterfly valves 2, water inlet branch pipes 3 and water distribution pipes 4 can be set to be 1 or more according to actual situations, so as to increase the number of water distribution points.

As shown in fig. 1 and 4, when in operation, sewage slowly rises through the mixed solution of the sludge layer, and continues to rise after contact reaction through the biological filler layer 5. The biological packing layer 5 is bound on the packing support 24 and is installed in the hydrolysis tank 14 in a hanging manner. The packing support 24 is mostly made of steel with smooth surface, is tightly welded on the embedded steel plate and the firmware 23, and performs anti-corrosion work. The biological filler layer 5 is fully covered with various anaerobic or facultative microbial membranes with extremely strong degradation capability, and when sewage flows through the biological filler, the resistance of the biological filler layer 5 plays a role in uniformly distributing water, so that the water distribution function of the hydrolysis tank 14 is realized. And the microbial film fully hung on the biological filler layer 5 is fully contacted with water, and sewage is adsorbed, filtered and degraded again, so that the morphology of pollutants in the water is changed, insoluble matters are converted into soluble matters, and the biodegradability of the sewage is improved.

In this embodiment, as shown in fig. 1 and 6, 3 water outlet collecting tanks 6 are selected, and the number of water outlet collecting tanks 6 is arranged according to the actual water quantity.

As shown in fig. 4, a plurality of weirs 28 are uniformly arranged on both sides of the effluent collection tank 6, and each weir 28 is kept horizontal, and the level difference of each weir 28 is not more than 1mm, so as to ensure that sewage in the pond uniformly passes through each weir 28 and enters the effluent collection tank 6.

In this embodiment, the weir 28 is arranged as a triangle, as shown in fig. 5.

As shown in fig. 4, the effluent collection sump 6 has one section in the form of a closed mouth and the other end in the form of an open mouth. The closed end is fixed in a blind hole reserved on the wall of the hydrolysis tank 14, and a second sealing element 18 is additionally arranged at the joint to ensure the tightness of the joint; the open end is fixed in the wall hole reserved on the pool wall, and a second sealing element 18 is additionally arranged at the joint to ensure the tightness of the joint. After the sewage collected by the effluent collecting tank 6 flows to the open end and enters the water channel 7, the sewage is discharged out of the hydrolysis tank 14 through the effluent main pipe 8. As shown in fig. 4, the bottom of the water outlet channel 7 is connected with one end of the water outlet main pipe 8, and a third waterproof sleeve 30 is additionally arranged at the connection position. Since all the weir crest 28 on both sides of the top of the water outlet collecting tank 6 are kept at the same level, the water flow rate of each weir crest 28 is the same, the sewage on the top of the hydrolysis tank 14 is uniformly redistributed, the water outlet collecting tank 6 plays a role in secondary water distribution, once the bottom water distribution pipe 4 is blocked and is not found, water distribution is forced to be carried out through the water outlet collecting tank 6 on the top, the water distribution uniformity of the hydrolysis tank 14 is improved, the reliability of water distribution is improved, and the sewage treatment effect is stably improved.

As shown in fig. 1 and 8, the cleaning device comprises a cleaning pipe 29, a first manual gate valve 9 and a first electric blow-down valve 10 which are arranged on the cleaning pipe 29, and the cleaning pipe 29 is connected with the water distribution pipe 4. The number of the clearing devices is the same as that of the water distribution pipe 4. The first manual gate valve 9 is in a normally open state and is closed only during maintenance; the first electric blow-down valve 10 is in a normally closed state, and is opened only when the water distribution pipe 4 needs to be cleared, and is closed after the clearing is completed. When the water distribution pipe 4 is blocked, the first electric blow-down valve 10 is opened, so that sewage in the hydrolysis tank 14 can flow backward to the water distribution pipe 4, and sundries blocking the water distribution holes 27 are loosened; and impurities in the water distribution pipe 4 are washed into the mud discharging canal 15 under the action of the shearing force of the water inlet travelling along the water distribution pipe 4, so that the cleaning work of the water distribution pipe 4 is completed. The two ends of the water distribution pipe 4 are respectively connected with the water inlet branch pipe 3 and the cleaning pipe 29 through flanges. The cleaning pipe 29 is fixed in the wall through hole reserved in the pool wall, and a third sealing piece 21 is additionally arranged at the joint to ensure the tightness of the joint, and a first waterproof sleeve 19 is sleeved outside the third sealing piece 21.

As shown in fig. 4, the bottom of the hydrolysis tank 14 is provided with a mud collecting groove 26, and the two side walls of the mud collecting groove 26 form an inward inclination angle beta, which ranges from 40 degrees to 60 degrees, so that the mud can slide downwards and enter. As shown in fig. 1, a certain gradient alpha is arranged along the bottom of the sludge collecting groove 26 from one end far away from the sludge discharging branch pipe 11 to the inlet of the sludge discharging branch pipe 11, and the range is 2-5 degrees, so that the sludge can flow at the bottom of the groove, and smooth sludge discharging is realized.

As shown in fig. 1, one end of the sludge collecting groove 26 is communicated with the sludge discharge branch pipe 11, and the sludge discharge branch pipe 11 is provided with a second manual gate valve 12 and a second electric blow-down valve 13. The number of the sludge collection grooves 26, the sludge discharge branch pipes 11, the second manual gate valves 12 and the second electric sewage valves 13 are required to be arranged according to the actual situation of the hydrolysis tank 14. The second manual gate valve 12 is normally open and is closed only during maintenance; the second electric blow-down valve 13 is in a normally closed state, and is opened only when the sludge is discharged, and is closed after the sludge is discharged. The mud discharging branch pipe 11 is fixed in a wall through hole reserved in the pool wall, and a fourth sealing piece 22 is additionally arranged at the joint to ensure the tightness of the joint, and a second waterproof sleeve 20 is sleeved outside the fourth sealing piece 22.

The first seal 17, the second seal 18, the third seal 21, and the fourth seal 22 may be made of an existing waterproof sealing material.

As shown in fig. 1, the dirt discharged from the cleaning pipe 29 and the sludge discharge branch pipe 11 all enter the sludge discharge channel 15, a cover plate 16 is arranged at the top of the sludge discharge channel 15, and the dirt collected by the sludge discharge channel 15 enters the subsequent process for sludge disposal.

The embodiments of the present utility model described above do not limit the scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model as set forth in the appended claims.

Claims

1. The utility model provides a hydrolysis tank water distribution system, includes hydrolysis tank, establishes biological filler layer in, hydrolysis tank upper portion sets up inlet tube and play water catch bowl, lower part and sets up the water distribution pipe, and the bottom sets up the mud pipe, the inlet tube with the water distribution union coupling, even seting up the water distribution hole on the water distribution pipe, its characterized in that still includes:

the cleaning device is connected with the water distribution pipe and used for flushing the water distribution pipe in a direction opposite to the water distribution direction so as to prevent the water distribution hole from being blocked;

the sludge collecting grooves are arranged at the bottom of the hydrolysis tank and are communicated with the sludge discharge pipe;

the mud discharging channel is respectively connected with the mud discharging pipe and the dredging device;

the water outlet water collecting tanks are in a plurality, each water outlet water collecting tank keeps the same horizontal height, two side walls of each water outlet water collecting tank are provided with a plurality of weir crest, and the height of each weir crest is set to be the same horizontal plane.

2. The water distribution system of a hydrolysis tank according to claim 1, wherein: the weir is arranged in a triangle.

3. The water distribution system of a hydrolysis tank according to claim 1, wherein: the cleaning device comprises a cleaning pipe, a first manual gate valve and a first electric blow-down valve which are arranged on the cleaning pipe, and the cleaning pipe is connected with the water distribution pipe.

4. The water distribution system of a hydrolysis tank according to claim 1, wherein: the water distribution holes are arranged obliquely downwards and are staggered at an angle of 45 degrees with the vertical direction.

5. The water distribution system of a hydrolysis tank according to claim 1, wherein: the two side walls of the mud collecting groove form inward inclination angles beta, and the range of the inclination angles beta is 40-60 degrees; the bottom surface of the sludge collecting groove is provided with a gradient alpha in the direction from one end far away from the sludge discharge pipe to the sludge discharge pipe, and the gradient alpha ranges from 2 degrees to 5 degrees.