A water distribution device and upflow anaerobic sludge blanket reactor

Abstract

The utility model relates to the technical field of upflow anaerobic sludge blanket reactors, and specifically discloses a water distribution device applied to upflow anaerobic sludge blanket reactors, including a tank body, a pipe sleeve and a water distribution box, wherein a plurality of water distribution holes distributed along the circumferential direction are provided on the top of the tank body; the pipe sleeve is arranged in the vertical direction, the top of the pipe sleeve is penetrated in the water distribution holes, and the bottom of the pipe sleeve extends to the bottom of the tank body; the water distribution box is arranged above the tank body, a water inlet is provided on the top of the water distribution box, and a plurality of water distribution pipes are connected to the bottom of the water distribution box; wherein the water distribution pipe is suitable for being movably penetrated in the pipe sleeve to supply water to the inside of the tank body. Thus, sewage can be evenly distributed to the cross section of the upflow anaerobic sludge blanket reactor, scaling and clogging of the water distribution pipe can be avoided, and rapid disassembly and replacement of the water distribution pipe can be realized, thereby reducing the difficulty of maintenance.

Description

Technical Field

[0001] The utility model relates to the field of upflow type anaerobic sludge bed reactors, in particular to a water distribution device and an upflow type anaerobic sludge bed reactor. Background Art

[0002] The upflow anaerobic sludge blanket reactor (UASB anaerobic tank for short) is a compact anaerobic bioreactor for sewage treatment. It integrates biological reaction and precipitation in structure. It mainly includes water inlet and distribution system, reaction zone, three-phase separator, gas chamber, treated water discharge system, mud discharge system and scum removal system. The UASB anaerobic tank has a large load capacity and is suitable for treating high-concentration organic wastewater. A well-functioning UASB anaerobic tank has a high organic pollutant removal rate, does not require stirring equipment, and can adapt to large load shocks, temperature changes and pH changes.

[0003] Specifically, sewage passes through the UASB anaerobic tank from bottom to top, and a high-concentration, high-activity sludge bed is set at the bottom of the UASB anaerobic tank, so that granular sludge with good flocculation and sedimentation properties forms a sludge bed at the bottom of the UASB anaerobic tank. The solid concentration of the sludge bed can range from 50 to 100 grams per liter. Among them, most of the organic pollutants in the sewage are degraded into methane and carbon dioxide by anaerobic fermentation in the sludge bed. A three-phase separator is set on the top of the UASB anaerobic tank to separate biogas, digestate and sludge particles. Biogas is extracted from the top of the UASB anaerobic tank, sludge particles automatically slide down and settle to the sludge bed, and digestate is discharged from the clarification area.

[0004] The water inlet and distribution system usually has a main water inlet pipe connected to the top of the UASB anaerobic tank, and the main water inlet pipe is connected to the branch pipe at the bottom of the UASB anaerobic tank, and a water distribution nozzle is set on the branch pipe. In this water distribution method, the main water inlet pipe is prone to scaling, the branch pipe is thin, the water distribution nozzle is easy to clog, and it is not easy to replace, making the system difficult to maintain and repair. Utility Model Content

[0005] In view of this, the utility model provides a water distribution device and an upflow anaerobic sludge blanket reactor applied to an upflow anaerobic sludge blanket reactor, which can evenly distribute sewage to the cross-section of the upflow anaerobic sludge blanket reactor, avoid scaling and clogging of the water distribution pipe, and at the same time realize rapid disassembly and replacement of the water distribution pipe, reducing the difficulty of maintenance.

[0006] An embodiment of the first aspect of the utility model provides a water distribution device applied to an upflow anaerobic sludge blanket reactor, comprising a tank body, a pipe sleeve and a water distribution box, wherein a plurality of water distribution holes distributed along the circumferential direction are opened on the top of the tank body; the pipe sleeve is arranged in a vertical direction, the top of the pipe sleeve is penetrated through the water distribution holes, and the bottom of the pipe sleeve extends to the bottom of the tank body; the water distribution box is arranged above the tank body, a water inlet is opened on the top of the water distribution box, and a plurality of water distribution pipes are connected to the bottom of the water distribution box; wherein the water distribution pipes are suitable for being movably penetrated through the pipe sleeve to supply water to the inside of the tank body.

[0007] Furthermore, the water distribution device also includes a water distribution joint, a plurality of water distribution joints are arranged at the bottom of the water distribution tank, and the water distribution pipes are detachably connected to the water distribution joints.

[0008] Furthermore, the water distribution device also includes a cut-off valve, which is arranged on the water distribution pipe and located on a side close to the water distribution joint.

[0009] Furthermore, the water distribution device also includes a connecting ring and a connecting rod, and a plurality of connecting rings are sleeved on the pipe sleeve; one end of the connecting rod is connected to the connecting ring, and the other end of the connecting rod is connected to the tank body.

[0010] Furthermore, the water distribution device also includes a right-angle connector, one end of which is connected to the bottom of the pipe sleeve, and the other end of which is connected to the tank body.

[0011] Furthermore, the water distribution device also includes a first flange and a second flange, the first flange and the second flange are sleeved on the top of the pipe sleeve, the first flange is located outside the tank body, and the second flange is located inside the tank body.

[0012] Furthermore, the pipe sleeve is a stainless steel pipe sleeve.

[0013] An embodiment of the second aspect of the utility model provides an upflow anaerobic sludge blanket reactor, comprising a water distribution device as provided in the embodiment of the first aspect.

[0014] The beneficial effects of the technical solution provided by the embodiment of the utility model include at least: a water distribution device applied to an upflow anaerobic sludge blanket reactor, comprising a tank body, a pipe sleeve and a water distribution box, wherein a plurality of water distribution holes distributed along the circumferential direction are provided on the top of the tank body; the pipe sleeve is arranged in the vertical direction, the top of the pipe sleeve is penetrated through the water distribution holes, and the bottom of the pipe sleeve extends to the bottom of the tank body; the water distribution box is arranged above the tank body, a water inlet is provided on the top of the water distribution box, and a plurality of water distribution pipes are connected to the bottom of the water distribution box; wherein the water distribution pipe is suitable for being movably penetrated through the pipe sleeve to supply water to the inside of the tank body. Thus, the sewage can be evenly distributed to the cross section of the upflow anaerobic sludge blanket reactor, and the scaling and clogging of the water distribution pipe can be avoided, while the rapid disassembly and replacement of the water distribution pipe can be realized, and the difficulty of maintenance can be reduced.

[0015] Among them, a shut-off valve is provided on the water distribution pipe to cut off the sewage supply, so that when the pipe sleeve of the faulty water distribution pipe is pulled out for inspection or replacement, other water distribution pipes can still maintain normal operation to avoid affecting the progress of sewage treatment.

[0016] Among them, the water distribution device also includes connecting rings, connecting rods, right-angle connectors, etc., which are respectively used to fix the top, middle and bottom of the pipe sleeve to prevent the pipe sleeve from moving or even falling off under the influence of gravity or sewage inside the tank.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only used for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used throughout the accompanying drawings to represent the same components. Among them:

[0019] Figure 1 A schematic structural diagram of a water distribution device and an upflow anaerobic sludge blanket reactor provided by an embodiment of the utility model is shown;

[0020] Figure 2 Shows Figure 1 A schematic structural diagram of the water distribution device and the upflow anaerobic sludge blanket reactor of the illustrated embodiment from another perspective.

[0021] in, Figure 1 to Figure 2 The corresponding relationship between the reference numerals and the component names is as follows:

[0022] 1 tank body, 11 water distribution hole, 2 pipe sleeve, 21 connecting ring, 22 connecting rod, 23 right angle connector, 24 first flange, 25 second flange, 3 water distribution tank, 31 water inlet, 32 water distribution joint, 4 water distribution pipe, 41 cut-off valve. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0025] Refer to the following Figure 1 to Figure 2 A water distribution device and an upflow anaerobic sludge blanket reactor are described according to some embodiments of the utility model.

[0026] like Figure 1 to Figure 2 As shown, according to an embodiment of the first aspect of the utility model, a water distribution device for an upflow anaerobic sludge blanket reactor is provided, comprising a tank body 1, a pipe sleeve 2 and a water distribution box 3. A plurality of water distribution holes 11 distributed along the circumferential direction are provided on the top of the tank body 1 for injecting sewage into the tank body 1; the pipe sleeve 2 is arranged in a vertical direction to facilitate the extraction or installation of the pipe sleeve 2 to the tank body 1, the top of the pipe sleeve 2 is penetrated by the water distribution hole 11, and the bottom of the pipe sleeve 2 extends to the bottom of the tank body 1, so that when sewage is injected through the water distribution hole 11, the sewage enters the tank body 1 from top to bottom; the water distribution box 3 is arranged above the tank body 1, and a water inlet 31 is provided on the top of the water distribution box 3, so that the sewage first enters the water distribution box 3 through the water inlet 31, and a plurality of water distribution pipes 4 are connected to the bottom of the water distribution box 3. Compared with using branch pipes and water distribution nozzles to inject sewage, the water distribution pipe 4 can avoid scaling and clogging; wherein, the water distribution pipe 4 is suitable for being movably penetrated in the pipe sleeve 2 to supply water to the inside of the tank body 1. In this way, the sewage can be evenly distributed to the cross section of the upflow anaerobic sludge blanket reactor, thus preventing the water distribution pipe 4 from being scaled and blocked. Meanwhile, the water distribution pipe 4 can be quickly disassembled and replaced, thus reducing the difficulty of maintenance.

[0027] Specifically, a plurality of water distribution holes 11 are distributed circumferentially on the top of the tank body 1, and the pipe sleeve 2 is passed through the water distribution holes 11, so that when the water distribution pipe 4 is passed through the pipe sleeve 2 for supplying water to the inside of the tank body 1, sewage can enter the tank body 1 from top to bottom, be evenly distributed on the cross-section of the upflow anaerobic sludge blanket reactor, and rise evenly, playing a role of hydraulic stirring, thereby preventing impurities in the sewage from being deposited at the bottom of the upflow anaerobic sludge blanket reactor.

[0028] The pipe sleeve 2 is arranged in the vertical direction, and the water distribution pipe 4 is passed through the pipe sleeve 2, so that when the water distribution pipe 4 is inspected or replaced, the water distribution pipe 4 can be directly pulled out from the pipe sleeve 2, which reduces the difficulty of inspecting and replacing the water distribution pipe 4. Preferably, the bottom of the pipe sleeve 2 is 0.5m away from the bottom of the tank body 1, which can ensure that the water level starts to rise from the bottom of the tank body 1 when sewage is injected.

[0029] It is understandable that the specific number of water distribution holes 11 and pipe sleeves 2 is not limited here, and it is only necessary to realize that multiple water distribution pipes 4 are passed through the pipe sleeves 2 to simultaneously supply water to the inside of the tank body 1. Preferably, the number of water distribution holes 11 is between 8 and 12, the number of pipe sleeves 2 is equal to the number of water distribution holes 11, and the number of water distribution pipes 4 is equal to the number of pipe sleeves 2.

[0030] like Figure 1 As shown, the water distribution device also includes a water distribution joint 32, which is used to connect the water distribution pipe 4 to the water distribution tank 3. Multiple water distribution joints 32 are arranged at the bottom of the water distribution tank 3. The water distribution pipe 4 is detachably connected to the water distribution joint 32, and can transport the sewage stored in the water distribution tank 3 to the inside of the tank body 1, and it is convenient to disassemble and replace the water distribution pipe 4.

[0031] It is understandable that the specific connection method between the water distribution pipe 4 and the water distribution joint 32 is not limited here, and it can be a threaded connection, etc., as long as the water distribution pipe 4 is detachable.

[0032] like Figure 1 to Figure 2 As shown, the water distribution device further includes a cut-off valve 41, which is arranged on the water distribution pipe 4 and is used to cut off the sewage in the water distribution pipe 4. The cut-off valve 41 is located on a side close to the water distribution joint 32. Specifically, when a water distribution pipe 4 fails, the cut-off valve 41 on the failed water distribution pipe 4 is closed, and the water distribution pipe 4 is pulled out of the pipe sleeve 2 for inspection or replacement. At this time, the other water distribution pipes 4 still maintain normal operation to avoid affecting the progress of sewage treatment.

[0033] like Figure 1 As shown, the water distribution device also includes a connecting ring 21 and a connecting rod 22, which are used to fix the pipe sleeve 2 to prevent the pipe sleeve 2 from moving or even falling off under the influence of gravity or sewage inside the tank body 1; multiple connecting rings 21 are sleeved on the pipe sleeve 2, one end of the connecting rod 22 is connected to the connecting ring 21, and the other end of the connecting rod 22 is connected to the inner wall of the tank body 1, thereby fixing the pipe sleeve 2 to the inner wall of the tank body 1.

[0034] It is understandable that the specific number of the connecting rings 21 and the connecting rods 22 is not limited here, and it is only necessary to achieve the fixing effect on the pipe sleeve 2. Preferably, two groups of connecting rings 21 and connecting rods 22 are provided, located in the middle of the pipe sleeve 2.

[0035] like Figure 1 As shown, the water distribution device also includes a right-angle connector 23 for fixing the bottom of the pipe sleeve 2. One end of the right-angle connector 23 is connected to the bottom of the pipe sleeve 2, and the other end of the right-angle connector 23 is connected to the tank body 1, which can prevent the pipe sleeve 2 from moving under the influence of sewage inside the tank body 1.

[0036] like Figure 1As shown, the water distribution device also includes a first flange 24 and a second flange 25, which are used to fix the top of the pipe sleeve 2. The first flange 24 and the second flange 25 are sleeved on the top of the pipe sleeve 2. The first flange 24 is located outside the tank body 1, and the second flange 25 is located inside the tank body 1. This can prevent the pipe sleeve 2 from slipping out of the water distribution hole 11 under the influence of gravity or sewage inside the tank body 1.

[0037] like Figure 1 As shown, the pipe sleeve 2 is a stainless steel pipe sleeve 2, which can avoid rust and clogging under the action of sewage and oxygen, and has sufficient strength to avoid damage.

[0038] like Figure 1 to Figure 2 As shown, an upflow anaerobic sludge blanket reactor provided according to an embodiment of the second aspect of the utility model includes a water distribution device as provided in the embodiment of the first aspect. Thus, sewage can be evenly distributed to the cross section of the upflow anaerobic sludge blanket reactor, and the scaling and clogging of the water distribution pipe 4 can be avoided. At the same time, the water distribution pipe 4 can be quickly disassembled and replaced, reducing the difficulty of maintenance.

[0039] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the terms "upper" and "lower" indicate positions or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the description of the present invention, the terms "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water distribution device, applied to an upflow anaerobic sludge blanket reactor, characterized in that: include: A tank body (1), wherein a top of the tank body (1) is provided with a plurality of water distribution holes (11) distributed in a circumferential direction; A pipe sleeve (2), the pipe sleeve (2) being arranged in a vertical direction, the top of the pipe sleeve (2) being passed through the water distribution hole (11), and the bottom of the pipe sleeve (2) extending to the bottom of the tank body (1); A water distribution box (3), the water distribution box (3) being arranged above the tank body (1), the top of the water distribution box (3) being provided with a water inlet (31), and the bottom of the water distribution box (3) being connected to a plurality of water distribution pipes (4); The water distribution pipe (4) is adapted to be movably inserted into the pipe sleeve (2) to supply water to the interior of the tank body (1); Also includes: A water distribution joint (32), wherein a plurality of the water distribution joints (32) are arranged at the bottom of the water distribution box (3), and the water distribution pipe (4) is detachably connected to the water distribution joint (32); Also includes: A cut-off valve (41), wherein the cut-off valve (41) is arranged on the water distribution pipe (4), and the cut-off valve (41) is located on a side close to the water distribution joint (32).

2. A water distribution device according to claim 1, characterized in that: Also includes: A connecting ring (21), wherein a plurality of the connecting rings (21) are sleeved on the pipe sleeve (2); A connecting rod (22), one end of the connecting rod (22) is connected to the connecting ring (21), and the other end of the connecting rod (22) is connected to the tank body (1).

3. A water distribution device according to claim 1, characterized in that: Also includes: A right-angle connector (23), one end of which is connected to the bottom of the pipe sleeve (2), and the other end of which is connected to the tank body (1).

4. A water distribution device according to claim 1, characterized in that: Also includes: A first flange (24) and a second flange (25), wherein the first flange (24) and the second flange (25) are sleeved on the top of the pipe sleeve (2), the first flange (24) is located outside the tank body (1), and the second flange (25) is located inside the tank body (1).

5. A water distribution device according to claim 1, characterized in that: The pipe sleeve (2) is a stainless steel pipe sleeve (2).

6. An upflow anaerobic sludge blanket reactor, characterized in that: include: A water distribution device as claimed in any one of claims 1 to 5.

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